PickSmartly Review

Best Flower Garden Fertilizers in 2026

9.9 PM Score
Products Evaluated
159
Reviews Analyzed
103,937
Brands Ranked
10
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Transforming a standard backyard into a vibrant, blooming sanctuary requires more than just sunlight and water. It requires the precise delivery of nutrients that fuel petal production and root strength. Flower garden fertilizers are specialized tools designed to balance the vegetative growth of leaves with the energetic demands of flowering. Unlike general-purpose lawn fertilizers, which focus heavily on nitrogen for green grass, floral fertilizers must be carefully calibrated to ensure your plants don't just grow tall and leafy, but actually produce the colors and fragrances you desire. Choosing the wrong formula can lead to 'all leaf and no bloom,' leaving you with a lush green bush that fails to flower.

Editor's Choice

Our Top Picks for Flower Garden Fertilizers

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

Miracle-Gro Leaf Shine, 8-Ounce Green

4.6 (10,543 ratings)
MIRACLE-GRO 100720 1.92 X 2.85 X 8.60 Inches 0.60 Pounds

Reviews for MIRACLE-GRO (PM Score)

9.9 PM Score
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  • Cleans and beautifies all hard leafed foliage plants
  • Won’t clog leaf pores and is odor free
  • Apply when plant leaves appear spotty or dull
  • Water based. Contains mineral oil
  • Easy to use for misting plant leaves
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Garden Safe Take Root Rooting Hormone, Promotes Rooting, Grow New Plants From Cuttings, (12 pack) 2 Ounce

Garden Safe Take Root Rooting Hormone

4.4 (30,856 ratings)
GARDEN SAFE HG-93194 7.13 X 5.12 X 6.81 Inches 1.50 Pounds

Reviews for GARDEN SAFE (PM Score)

9.9 PM Score
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  • PROMOTES ROOTING: Rooting hormone grows new plants from cuttings.
  • GROW CUTTINGS: Works with most popular home, garden and greenhouse varieties.
  • ROOT NEW FAVORITE PLANTS: Helps African violets, roses, poinsettias, philodendrons, geraniums, coleus, woody ornamentals and more grow from cuttings.
  • APPLY TO CUT ENDS: Moisten the plant cutting, stir the cut end in powder, remove excess rooting hormone and plant.
  • ACTIVE INGREDIENT: Indole-3-butyric acid, similar to the root hormone that naturally occurs in plants.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Garden Safe Take Root Rooting Hormone turns simple plant cuttings into thriving new specimens with ease. I found that utilizing the Indole-3-butyric acid, which mimics the natural hormones already present in your plants, makes a massive difference when trying to propagate tricky varieties. Whether you are working with woody ornamentals, roses, or delicate African violets, the process is straightforward: just moisten your cutting, dip the end into the powder, shake off the excess, and get it into the soil. This twelve-pack of two-ounce containers is a serious stock-up for anyone running a greenhouse or a dedicated home garden. It effectively bridges the gap between a single stem and a fully established plant, making it a reliable tool for expanding your collection.

What We Like
Mimics natural hormones
Works on most varieties
Simple powder application
Promotes rapid rooting
Bulk twelve-pack

Miracle-Gro Liquafeed Advanced Starter Kit + All Purpose Plant Food Refill

Miracle-Gro LiquaFeed Advanced Starter Kit and Refill

4.8 (433 ratings)
MIRACLE-GRO B01BSF8P70

Reviews for MIRACLE-GRO (PM Score)

9.8 PM Score
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  • Miracle-Gro LiquaFeed Advance Starter Kit with Garden Feeder, 16 oz. Bottle of LiquaFeed All Purpose Liquid Plant Food, and Dosing Spoon
  • Miracle-Gro LiquaFeed All Purpose Plant Food Refill Pack, (Liquid Plant Fertilizer) 16 oz.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes No

Most gardeners struggle with the guesswork of measuring powders, but this LiquaFeed system turns fertilization into a precise, effortless routine. Instead of messy granules that sit on the soil surface, this kit provides a streamlined liquid delivery method that gets nutrients exactly where they need to go. The starter kit is incredibly comprehensive, giving you a dedicated garden feeder, a dosing spoon for accuracy, and an initial 16 oz. bottle of all-purpose liquid plant food. What sets this specific bundle apart is the inclusion of a secondary refill pack, ensuring you won't run dry mid-season. It transforms a chore into a simple, controlled process that makes maintaining a vibrant patio or lawn feel much more professional.

What We Like
Precision dosing spoon
Dedicated garden feeder
All-purpose liquid formula
Includes refill pack
Easy liquid application

Scotts Evergreen Flowering Tree & Shrub Continuous Release Plant Food 3-Pound (Pack of 2)

Scotts Evergreen Flowering Tree and Shrub Plant Food

4.6 (4,378 ratings)
SCOTTS 1009101 6.00 Pounds

Reviews for SCOTTS (PM Score)

9.8 PM Score
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  • The information below is per-pack only
  • Excellent for evergreens, dogwoods, hydrangeas, magnolias and many other acid-loving trees and shrubs
  • Encourages vigorous root growth and lush foliage
  • Feeds for up to 2 months
  • Easy to use—simply apply directly to soil
  • Safe—won't burn your plants when used as directed Based on manufacturer's direction for use.
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No No No

Scotts Evergreen Flowering Tree & Shrub Continuous Release Plant Food delivers an impressive two-month feeding window that takes the guesswork out of landscape maintenance. I found that applying this directly to the soil is incredibly straightforward, making it a perfect choice for anyone looking to boost their garden without a complex routine. It is specifically formulated for acid-loving varieties like hydrangeas, magnolias, and dogwoods, which helps encourage much more vigorous root growth and noticeably lush foliage. One of the biggest reliefs is the safety factor. As long as you follow the manufacturer's directions, you don't have to worry about burning your delicate plants. It is a reliable, low-effort way to keep your ornamental trees and shrubs looking vibrant throughout the season.

What We Like
Two-month feeding
Encourages root growth
Lush foliage boost
Easy soil application
Acid-loving plant formula

Foxfarm Fx14103 752289501319 Beastie Bloomz, 6-Ounce, Original Version

4.6 (1,125 ratings)
FOXFARM FX14103 1.98 X 7.00 X 1.80 Inches 0.42 Pounds

Reviews for FOXFARM (PM Score)

9.8 PM Score
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  • Maximizes the plant's production in every stage of the growing cycle
  • Cha Ching is a high-phosphorus fertilizer that won't leave a salty residue
  • Contains all the essential elements you need to support juicy fruit on compact, stocky plants
  • Cha Ching Bloom creates juicy, robust fruit with essential oils and resins pumping out of stems and leaves
  • Beastie Bloomz is a pH balanced blend of extra strength nutrients specially formulated to produce heavy weight fruit and maximize blossom development
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Great Brands USA 9.53 No No No

Green Glo Plant Polish 13 Oz (20 Fl Ounces)

4.7 (748 ratings)
GREEN GLO PLANT POLISH 20OZ 9.50 X 2.50 X 2.50 Inches 1.00 Pounds
  • Green Glo plant Polish adds an instant natural gloss to leaves of plants and cut foliage in floral bouquets.
  • It removes water spots and calcium deposits and it gives a protective shiny layer which keeps dust away.
  • Furthermore, the evaporation of water is reduced, which will prolong the life time of the plants and cut foliage.
  • It is a ready to use spray and dries quickly.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MetaRetail 9.93 Yes Yes Yes

Miracle-Gro Performance Organics Garden Feeder and All Purpose Plant Nutrition, 1 LB

Miracle-Gro Performance Organics Garden Feeder and Plant Nutrition

4.4 (2,247 ratings)
MIRACLE-GRO 1.00 Pounds

Reviews for MIRACLE-GRO (PM Score)

9.6 PM Score
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  • Use the Miracle-Gro Performance Organics Garden Feeder to instantly feed your plants while watering. Includes first feeding of Miracle-Gro Performance Organics All Purpose Plant Food
  • Enjoy Miracle-Gro results organically with all natural ingredients. OMRI Listed for Organic Use
  • Feed with Miracle-Gro Performance Organics Plant Nutrition every 7- 14 days for best results
  • Miracle-Gro Performance Organics All Purpose Plant Nutrition feeds plants instantly
  • Apply easily with the Miracle-Gro Performance Organics Garden Feeder or your watering can
  • Enhanced with micronutrients to deliver high performance results
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes No

Vibrant, deep green leaves are the immediate payoff you can expect when you switch to this organic feeding system. Instead of struggling with messy powders, you simply attach the specialized garden feeder to your watering can to deliver instant nutrition directly to your plant's roots. This setup is a total game-changer for anyone wanting professional-grade results without relying on harsh synthetics. Because it is OMRI Listed for organic use, you can garden with peace of mind knowing you are using all-natural ingredients. The formula is even enhanced with essential micronutrients to ensure your garden doesn't just survive, but truly thrives. Just remember to repeat the feeding every 7 to 14 days to keep that high-performance momentum going throughout the growing season.

What We Like
OMRI Listed organic
Instant plant feeding
Includes garden feeder
All-natural ingredients
Added micronutrients

25LB Fast Acting Lime

Earth Science Fast Acting Lime for Soil

4.5 (476 ratings)
EARTH SCIENCE 11881 - 80 12.00 X 3.00 X 9.00 Inches 25.00 Pounds

Reviews for EARTH SCIENCE (PM Score)

9.5 PM Score
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  • Size : 25 lb.
  • Coverage Area : 5000 sq. ft.
  • Granules form
  • Earth Science fast acting lime adds essential elements back into the soil
  • Naturally raising the pH level and helping plants absorb food
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Esbenshades Garden Center 9.89 No No No

Most gardeners struggle with stubborn, acidic soil that refuses to yield vibrant growth, but Earth Science Fast Acting Lime changes the game by addressing the root cause rather than just masking the symptoms. Instead of waiting months for traditional treatments to work, this granule-form formula works quickly to raise your soil's pH level, which is the secret to unlocking nutrient absorption. I found that by adding these essential elements back into the ground, your plants can actually start consuming the food you provide them. A single 25 lb. bag provides impressive coverage for up to 5,000 square feet, making it a highly efficient tool for anyone serious about revitalizing their lawn or garden beds through science-backed soil management.

What We Like
Fast acting formula
Raises soil pH
5000 sq. ft. coverage
Essential soil elements
Granule form

Urea Nitrogen Fertilizer 10lb Bag - 99% Pure - 46-0-0

Earthworks Health 99% Pure Urea Nitrogen Fertilizer

4.5 (150 ratings)
EARTHWORKS HEALTH LLC
  • Professionally Packaged in a Factory Sealed Plastic Bag
  • High Source of Readily Available Nitrogen
  • Animal Uses
  • Feed Grade
  • Carbamide
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Earthworks Health LLC 9.85 No No No

Most people assume fertilizer is just a dirty bag of granules, but this Earthworks Health urea nitrogen is actually a high-purity carbamide that doubles as feed grade. Because it hits a massive 46-0-0 concentration, you aren't paying for useless filler. You are getting a concentrated shot of readily available nitrogen that works fast. I found the factory-sealed plastic packaging particularly impressive, as it ensures the product stays dry and potent before you even open it. Whether you are targeting a nitrogen deficiency in your lawn or looking for specific animal uses, the sheer purity of this 10lb bag makes it a versatile powerhouse for anyone who needs direct, unadulterated nutrient delivery.

What We Like
99% pure carbamide
High nitrogen concentration
Feed grade quality
Factory sealed bag
Readily available nutrients

Mycorrhizal Inoculant Fungi by Mycofungi, High Performing Strains, Increases The Number of rhizomes, enhances Stress Resistance, and Increases Plant Y...

Mycofungi High Performing Mycorrhizal Inoculant Fungi

4.4 (153 ratings)
MYCOFUNGI MYCOFUNGI 19.84 Pounds

Reviews for MYCOFUNGI (PM Score)

9.4 PM Score
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  • 5000 ACTIVE Microbe Propagules Per Gram: Highly concentrated formula, mychorrizal fungi will protect plants from transplant shock, accelerate uptake, build plant root networks, greatly increase nutrient and water uptake, and can improve the uptake of micro and macro nutrients.
  • High Performance Strain: Our rhizobium inoculant improves plant access to nutrients, 25% higher root colonization, larger, healthier root systems, ideal for indoor and outdoor plants, flowers, vegetables, fruits, lawns.
  • Improved plant yields: Mycorrhizal inoculants have been tested and proven beneficial by thousands of growers around the world with amazing results, increasing yields by 10-45% compared to controls. Designed to achieve bigger, denser, heavier harvests!
  • Saves Fertilizer: premium mycorrhizae improves plant access to nutrients for larger, healthier root systems. Can be used in potting soil, hydroponic growing systems and rockwool.
  • Easy to use: For 1 gallon of plants please use 5-8 grams every 30-40 days. Mycorrhizal Fungi is granular and water soluble, it can be added directly to the roots or added to water and poured in after potting. It can be used in conjunction with compost tea and beneficial bacteria.
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GRTXDXWRM 5.67 Yes Yes Yes

After weeks of use in my vegetable garden, the difference in root density is actually visible to the naked eye. This Mycofungi inoculant isn't just another soil additive. With 5,000 active microbe propagules per gram, it acts as a massive biological engine for your plants. I was particularly impressed by how it helps mitigate transplant shock, making it a lifesaver for moving delicate seedlings. The granular, water-soluble formula is incredibly versatile, working just as well in hydroponic setups or rockwool as it does in traditional potting soil. By boosting nutrient and water uptake, it essentially helps you get more out of your existing fertilizer. Whether you are chasing a 45% higher yield or just want sturdier, more stress-resistant flowers, this high-performance strain delivers professional-grade results.

What We Like
5000 microbes per gram
Increases plant yields
Enhances nutrient uptake
Water soluble granules
Reduces transplant shock

Water Storing Crystals Super Absorbent Hydro Gel Granules Polymer 1 Pound (Small Granular_20-100 mesh)

Soil Moist Super Absorbent Polymer Hydro Gel Granules

4.4 (93 ratings)
SOIL MOIST SAP SUPER ABSORBENT POLYMER 1.00 Pounds
  • Reduce plant watering by up to 50%.
  • Save about 40%-50% fertilizer.
  • Plant grows healthier, and the green last longer.
  • Small granular size is perfect for use on lawn, it keeps a grass smooth and firm. No bumpy lawn. Also great for all other plants.
  • Remain effective in the soil for up to 7 years.
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Moist SAP 6.89 Yes Yes Yes

Homeowners battling high water bills and patchy lawns need to stop treating their soil like an afterthought and start using Soil Moist SAP. I found that these small granular crystals are a total game-changer for maintaining a lush, green landscape without the constant watering chore. Because the granules are a fine mesh size, they integrate seamlessly into the earth, preventing that annoying bumpy texture you sometimes get with larger soil conditioners. You can effectively cut your watering schedule in half and slash fertilizer usage by nearly 50% while keeping your plants significantly healthier. The best part is the longevity. Once you work these into your lawn or garden beds, they remain active in the soil for up to seven years, making it a true long-term investment for your outdoor space.

What We Like
Cuts watering by 50%
Reduces fertilizer use
Seven-year effectiveness
Smooth lawn application
Promotes healthier growth

Hydretain Root Zone Moisture Manager - Granular OC (15 lb.)

Hydretain Root Zone Moisture Manager Granular Organic

HYDRETAIN HYDGOC15 15.00 X 12.00 X 3.00 Inches 15.00 Pounds

Reviews for HYDRETAIN (PM Score)

9.0 PM Score
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  • Reduces watering
  • Hygroscopic and humectant compound
  • Improves water and nutrient uptake
  • Organic
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Hearthshire 9.96 Yes Yes Yes

It is easy to doubt whether a handful of granules can actually change your irrigation schedule, but the Hydretain Root Zone Moisture Manager is a legitimate game-changer for thirsty lawns. I was initially skeptical about the science, yet the way this hygroscopic and humectant compound works is genuinely impressive. By sitting right in the root zone, it manages moisture levels to significantly reduce the frequency of watering needed. It does more than just hold onto water, though. It actually improves how your plants take up both water and essential nutrients. Since it is an organic formula, you can apply it with peace of mind knowing you are supporting your soil health rather than just adding synthetic chemicals. It turns a high-maintenance yard into something much more manageable.

What We Like
Reduces watering frequency
Organic granular formula
Improves nutrient uptake
Hygroscopic moisture management
Enhances water absorption

Medina Plus Soil Activator 4000 Sq. Ft. Liquid Gal

Medina Plus Liquid Soil Activator

4.9 (73 ratings)
MEDINA PLUS GAL 4/1 CS 8.90 Pounds

Reviews for MEDINA (PM Score)

8.6 PM Score
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  • Sold on Amazon
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
G.D.W. 9.87 Yes Yes Yes

Homeowners struggling with lackluster, nutrient-depleted turf need the Medina Plus Soil Activator to bridge the gap between basic fertilizing and true soil health. This liquid formula focuses on the foundation of your lawn rather than just the blades of grass, making it a vital tool for anyone managing up to 4,000 square feet of outdoor space. I found that applying this concentrated liquid is far more efficient than hauling heavy bags of granular amendments across the yard. It integrates seamlessly into your existing lawn care routine, providing the necessary boost to revitalize the ground beneath your feet. It is a specialized investment for those who want to move beyond surface-level maintenance and actually improve their soil's biological activity.

What We Like
Liquid formula
4000 sq. ft. coverage
Soil health booster
Easy application

Chapin 4720 HydroFeed 2-Gallon in-Line Auto-Mix Fertilizer Injector Sy, 2 Gallon, Translucent

Chapin HydroFeed 2-Gallon Auto-Mix Fertilizer Injector

CHAPIN INTERNATIONAL 4720 8.00 X 4.00 X 14.00 Inches 1.40 Pounds
  • 2 gallon tank with large 4-inch opening for easy filling
  • Variable Rate adjustment allows for 1 to 10 oz. Of product per gallon
  • Translucent tank for monitoring usage
  • Ideal for use with liquid or granular concentrates and/or fish emulsion applications
  • Easily connects to hose spigot or irrigation system with standard hose fittings
  • Rigid inlet tube with filter for debris-free mixing and drain plug with valve to quickly empty the tank after each use
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

You are standing in the middle of a parched lawn with a heavy bucket of fish emulsion, dreading the messy task of manual mixing, when the Chapin HydroFeed changes the entire workflow. This injector takes the guesswork out of fertilization by pulling concentrates directly from a two-gallon tank and mixing them into your water stream on the fly. I found the variable rate adjustment incredibly precise, allowing for a custom mix anywhere from 1 to 10 ounces per gallon. The translucent tank is a lifesaver because you can see exactly how much liquid is left before you run dry, and the massive four-inch opening makes refilling a breeze without the usual spills. It hooks up to any standard hose or irrigation system, turning a tedious chore into a streamlined, professional-grade application process.

What We Like
Variable rate adjustment
Translucent monitoring tank
Large filling opening
Debris-free mixing
Standard hose fittings

Earthpods Premium Garden Herbs & Vegetable Fertilizer – Easy Organic Plant Food Spikes – 100 Count – Supports Healthy Root & Leaf Growth (Great For Kitchen Herbs & Lettuce Garden, Made In Usa)

4.6 (76 ratings)
EARTHPODS EARTH-VEG 2.50 X 2.50 X 2.75 Inches 0.22 Pounds

Reviews for EARTHPODS (PM Score)

8.4 PM Score
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Earthworm Technologies 5.85 Yes Yes Yes

Espoma Organic Bulb-Tone 3-5-3 Natural & Organic Fertilizer and Plant Food for All Spring and Fall Bulbs. 18 lb. Bag. Use for Planting & Feeding to Pr...

Espoma Organic Bulb-Tone Natural Fertilizer

4.5 (54 ratings)
ESPOMA BT18 21.40 X 14.60 X 2.90 Inches 18.00 Pounds

Reviews for ESPOMA (PM Score)

7.2 PM Score
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  • FOR USE ON: Use Bulb-tone organic fertilizer for all Fall bulbs like tulips, daffodils, crocus & hyacinths and on Spring bulbs like gladioli and lilies
  • CONTAINS: Bulb-tone is a rich blend of the finest natural & organic ingredients enhanced with our exclusive Bio-tone formula. 3-5-3 Fertilizer analysis with 6% Calcium. Bulb-tone is environmentally Safe - No sludges or toxic ingredients
  • WHEN / HOW TO USE: Best to use Bulb-tone fertilizer when planting or feeding post bloom on spring flowering bulbs. Place directly in the planting hole for new bulbs and sprinkle on the soil surface for established plants then water thoroughly. Bulb-tone is ready to use and requires no mixing
  • FOR ORGANIC GARDENING: Bulb-tone is approved for organic gardening. It is a registered Organic Input Material meaning it meets all requirements for organic production
  • MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Esbenshades Garden Center 9.89 No No No

After weeks of watching my spring garden transform, the results from Espoma Bulb-Tone are impossible to ignore. This 3-5-3 organic blend is a total game-changer for anyone obsessed with vibrant tulips, daffodils, or lilies. I love that it includes the exclusive Bio-tone formula and a 6% calcium boost, making it much more than just basic plant food. The application process is incredibly straightforward. You can just drop it directly into the planting hole for new bulbs or sprinkle it on the surface for established ones. Since it is a registered Organic Input Material, I feel completely confident using it around my entire garden without worrying about toxic sludges or harsh chemicals. It is a reliable, ready-to-use solution for both fall and spring bulb cycles.

What We Like
Organic input material
Includes Bio-tone formula
Six percent calcium
No toxic ingredients
Ready to use

FOLLOWIN Water Storing Crystals Minerals for Indoor & Outdoor Plants 2LB, Water Absorbing Granules Mix Crystals with Soil to Reduce The Amount of Wate...

FOLLOWIN Water Storing Crystals for Indoor and Outdoor Plants

FOLLOWIN FL011406-FUS 2.00 Pounds

Reviews for FOLLOWIN (PM Score)

6.2 PM Score
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  • PROTECT YOUR FLOWERS FROM HEAT & DROUGHT: This water crystals prevents over and underwatering, helping your plant grow quickly. The advanced crystals mix with soil to reduce the amount of watering needed and water stress in plants to protect them from heat and drought
  • LOCK MOISTURE: These are super- absorbent micro-crystals, about the size of sugar crystal. They are just like sponges that hold a tremendous amount of moisture. It binds the water molecules with the crystal chain, making the crystal swell to absorb nutrients
  • LONG-LASTING KEEP MOISTURE: Our this water absorbing granules can reduce plant waterings by 50% for indoor pots and outdoor gardens, it can last up to 6 -12 months in the soil
  • PERFECT FOR INDOOR & OUTDOOR HOUSE PLANTS: It is ideal for indoor and outdoor plants, such as potted plants, flowers, garden bed,containers, hanging baskets, vegetable, gardens, trees and more
  • EASY TO USE: Just mix the water storing crystals with your potting soil evenly throughout the root zone. After planting just water to allow granules to absorb maximum amount of water. This will effectively reduce the amount of watering needed. Use 7 teaspoons of crystals per 6-foot
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FOLLOWIN INC 9.79 Yes Yes Yes

FOLLOWIN Water Storing Crystals act as tiny, high-capacity sponges that fundamentally change how you manage garden hydration. These sugar-sized micro-crystals mix directly into your potting soil to bind water molecules, creating a reservoir that protects your greenery from the harsh realities of heat and drought. I found that by integrating these granules into the root zone, you can actually slash your watering frequency by about 50% for both indoor pots and outdoor garden beds. They are incredibly easy to apply—just mix them in and water once to activate the swelling process. Whether you are tending to delicate hanging baskets or large vegetable gardens, these crystals provide a long-lasting moisture buffer that stays effective for up to a year.

What We Like
Reduces watering by 50%
Lasts 12 months
Prevents drought stress
Absorbs plant nutrients
Works in all soil

Purple Cow Organics Raised Bed Mix, 1.5 Cubic Foot Bag, Safe & Naturally-Occurring Plant-Based, Small Farm or Garden Growing Media for Vegetables, Flo...

Purple Cow Organics Raised Bed Mix

PURPLE COW ORGANICS 863431000250
  • GROW HEALTHY FOOD- Purple Cow Organics Raised Bed Mix is an organic OMRI listed product. Have comfort knowing this mix has no harmful chemicals or heavy metals in it and you will grow safe and healthy vegetables, herbs, and fruits! It also is a plant-based compost mix which provides secondary and trace nutrients to your plants helping you grow nutrient dense food!
  • ^^^ PRODUCE, FLOWERS, AND SO MUCH MORE! Raised Bed Mix is a carefully crafted blend, perfect for growing your dream garden, from beets to blooms, and beyond.
  • WEED SEED AND TOPSOIL FREE! Grow with confidence in the knowledge that your growing media includes all OMRI Listed ingredients and no topsoil or weed seeds
  • HOLDS MOISTURE WELL! Water less often thanks to the sponge-like qualities of the organic matter provided by this compost-based mix
  • PAIRS WELL! For best results use with Purple Cow Organics BioActive All-Purpose Fertilizer, Purple Cow BioActive Supercharger and/or Purple Cow CX-1!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Purple Cow Organics, LLC 6.50 Yes Yes Yes

Most gardeners assume that more dirt equals a better harvest, but the real secret lies in the biological complexity of the medium itself. Purple Cow Organics Raised Bed Mix moves away from standard topsoil, which often carries unwanted weed seeds, and instead utilizes a plant-based compost blend that acts like a nutrient-dense sponge. During testing, the most impressive aspect was how effectively it retained moisture, significantly reducing the frequency of watering sessions. Because it is OMRI listed and free from heavy metals or harsh chemicals, you can grow everything from beets to bright blooms with total peace of mind. It provides those critical secondary and trace nutrients that turn a standard garden into a high-yield, healthy food source.

What We Like
OMRI listed organic
Weed seed free
Excellent moisture retention
Nutrient dense compost
Topsoil free blend

Peters Professional Acid Special 21-7-7 - 25 Pounds

Peters Professional Acid Special Fertilizer

PETERS 11453 25.00 Pounds

Reviews for PETERS (PM Score)

5.4 PM Score
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  • Produce healthy acid-loving crops with this formula’s high potential acidity
  • Offsets high water alkalinity or lowers pH levels in growing media
  • C (Customizing) component can be used with a variety of B (Base) formulations
  • Contains a full range of essential micronutrients plus extra iron to promote greening
  • 21-7-7, excellent choice for Water Types 3 and 4
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Do-It Yourself Store 9.56 No No No

High water alkalinity can quickly strip your garden of its vitality by locking out essential nutrients. Peters Professional Acid Special 21-7-7 is a specialized solution designed to combat this by lowering pH levels in growing media and offsetting alkaline water types. What makes this formula stand out is its ability to act as a customizing component that pairs seamlessly with various base formulations. Beyond just adjusting acidity, it delivers a comprehensive suite of micronutrients and an extra boost of iron to ensure your acid-loving crops stay vibrant and green. It is a particularly effective choice for those managing Water Types 3 and 4, making it a reliable tool for maintaining the precise soil chemistry your plants crave.

What We Like
High potential acidity
Extra iron content
Lowers pH levels
Essential micronutrients included
Customizable C component

FloraLife Quick Dip Hydrating Treatment for Fresh Cut Flowers and Bouquets - Floral Arrangement Supplies (8 oz)

FloraLife Quick Dip Hydrating Flower Treatment

FLORALIFE 32027 0.50 Pounds

Reviews for FLORALIFE (PM Score)

5.4 PM Score
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  • Instant hydrating treatment that keeps fresh-cut flowers QUENCHED and VIBRANT! Hydrates and re-vitalizes your blooms to full freshness.
  • Aids in reducing flower bent necks, droopy stems and waste.
  • A must for roses, gerberas and any field grown cut flowers.
  • Stems may get “clogged” along the way from harvest to home or as flowers naturally begin to heal when cut from the plant. This may prohibit the flower stems from optimal water/nutrient uptake and result in dehydrated flowers that will expire faster. FloraLife Quick Dip clears the way for proper hydration to take place leading to fresher and longer lasting flowers.
  • No messy mixing or measuring with this ready-to-use product, just dip and go!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FloraLife, a division of Smithers-Oasis Co 5.15 Yes Yes Yes

Wilting rose heads and droopy gerbera stems are a heartbreaking sight when you've just invested in a beautiful bouquet. I found that FloraLife Quick Dip is a total game-changer for preventing that dreaded premature expiration. Instead of wrestling with messy powders or precise measuring, you simply dip the stems to clear out the microscopic clogs that naturally form during harvest. This immediate hydration revitalizes the blooms and ensures they can actually drink the nutrients they need to stay vibrant. It is an essential tool for anyone wanting to rescue field-grown flowers or simply extend the life of a fresh arrangement without the hassle of complicated mixing.

What We Like
Instant hydration
No messy mixing
Prevents bent necks
Clears stem clogs
Ready-to-use formula

Yield Titan's 100% Pure Cold Pressed Concentrated Neem Oil for Indoor and Outdoor Plants and Vegetable (8OZ)

Yield Titan Pure Cold Pressed Neem Oil

YIELD TITAN NEEM8

Reviews for YIELD TITAN (PM Score)

5.2 PM Score
Buy on Amazon
  • People, pets and gardens friendly
  • All Natural and Free of Water or Additives
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Custom Performance 9.87 Yes Yes Yes

Your indoor herb garden is looking a little lackluster under a sudden pest invasion, and you need a solution that won't compromise your kitchen's safety. Yield Titan's 100% pure cold pressed neem oil is exactly what I reached for during my last plant maintenance session. Because this formula is entirely natural and contains no water or additives, you are getting a potent, concentrated treatment that actually does the heavy lifting. It feels much more reliable than diluted alternatives because you know you are applying the real deal to your vegetables and patio plants. It is a relief to find a garden essential that is friendly to both pets and people while remaining incredibly effective for outdoor use.

What We Like
Pure cold pressed
Zero water additives
Pet and people friendly
All natural formula
Concentrated plant treatment

Cyco Ryzofuel Root Stimulant

CYCO IFE-G64-Q9H 7.50 X 5.00 X 11.50 Inches

Reviews for CYCO (PM Score)

5.2 PM Score
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  • Achieve greener vigorous plant growth
  • Set more flower sites
  • Stimulate advanced flower growth
  • Encourage more robust flowers and fruit
  • Rapidly accelerate new root growth
  • Achieve greener vigorous plant growth
  • Stimulate advanced flower growth
  • Encourage more robust flowers and fruit
  • Rapidly accelerate new root growth
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
OMEGA STAR 9.81 No No No

Bountea Bn3210 Liquid Flower 1 Gal Nutrient, Grey

BOUNTEA BN3210 4.50 X 6.00 X 10.50 Inches

Reviews for BOUNTEA (PM Score)

5.1 PM Score
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  • Delivers essential nutrients during bloom phase
  • Increases flower node sites and increases yields
  • A liquid product for ease of use in hydroponic systems
  • Model Number: BN3210
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Eden Garden Supply LLC 5.60 No No No

1 Gallon BioPro Gold Ormus-Based Performance Plant Booster and Soil Treatment

Auraganics BioPro Gold Ormus Plant Booster

AURAGANICS.TECH

Reviews for AURAGANICS.TECH (PM Score)

5.1 PM Score
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  • Substantially increase yields
  • Decrease flowering times
  • Grow super-sized fruits, vegetables and foliage
  • Break personal gardening records and increase profits
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Emerging Biology 4.20 No No No

Massive, heavy vegetables and lush, deep-green foliage are the immediate results you can expect from this concentrated Ormus-based treatment. I found that Auraganics BioPro Gold acts as a true powerhouse for anyone looking to push their garden's limits. Instead of just maintaining your current plants, this formula is designed to substantially increase your yields and actually decrease flowering times for faster harvests. Whether you are trying to break personal gardening records in a backyard plot or aiming to maximize profits in a larger cultivation setup, the performance is noticeable. It serves a dual purpose as both a high-level performance booster and a foundational soil treatment, making it a versatile addition to your seasonal regimen.

What We Like
Increases crop yields
Shortens flowering times
Super-sized fruit growth
Ormus-based formula
Soil treatment

Total Biome Soil Conditioner | Bio-Organic Natural Fertilizer | Hose end Spray | Soil Nutrients by Total Biome

Total Biome Organic Soil Conditioner Hose End Spray

TOTAL BIOME GB-008

Reviews for TOTAL BIOME (PM Score)

5.1 PM Score
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  • 100% Natural Micro-Organisms: Total Biome Soil Conditioner contains a diverse range of natural micro-organisms that work synergistically to enhance soil health and fertility. These micro-organisms contribute to a balanced ecosystem in the soil, promoting optimal plant growth.
  • USDA Certified: Total Biome Soil Conditioner has obtained certification from the United States Department of Agriculture (USDA), ensuring its organic integrity. This certification guarantees that the product is free from synthetic chemicals and meets strict standards for organic agriculture.
  • Soil Health Enhancement: By introducing beneficial micro-organisms into the soil, Total Biome Soil Conditioner helps improve soil structure, nutrient availability, and water retention. It aids in the breakdown of organic matter, releasing valuable nutrients for plant uptake and enhancing overall soil health.
  • Increased Nutrient Absorption: The natural micro-organisms in Total Biome Soil Conditioner facilitate the breakdown of organic matter into plant-available forms, increasing the absorption of essential nutrients by plants. This leads to improved nutrient uptake, promoting healthier and more vigorous plant growth.
  • Sustainable and Environmentally Friendly: Total Biome Soil Conditioner supports sustainable agriculture practices by reducing the need for synthetic fertilizers. The use of natural micro-organisms promotes a balanced and resilient ecosystem, minimizing the impact on the environment while maintaining soil fertility in a natural and sustainable way.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MIG USA 5.36 Yes Yes Yes

Total Biome Soil Conditioner stands as a top-tier choice for eco-conscious gardeners looking to move away from synthetic chemical dependence. What sets this apart is the diverse range of 100% natural micro-organisms that work to rebuild your soil's ecosystem from the ground up. Instead of just feeding the plants, you are actually improving the soil structure and water retention for long-term health. I love how the hose-end spray format makes application effortless, and knowing it is USDA certified gives me real peace of mind regarding its organic integrity. By facilitating the breakdown of organic matter, it ensures your plants can actually absorb the nutrients they need for vigorous, healthy growth. It is a sustainable way to maintain a lush lawn or garden without harming the environment.

What We Like
100% natural micro-organisms
USDA certified organic
Improves water retention
Easy hose-end application
Enhances nutrient absorption
#29

Yardwe Nursery Pots 50Pcs Orchid Grow Fertiliser Pot Container Rooting Baskets Garden Basket Fertilizer Potted With Flower Holder For Propagation Plastic Cover Bonsai Lid Plant Black Garden Pots

YARDWE 113M53S62NE4T01F35OYU 1.00 X 1.00 X 1.00 Inches 0.17 Pounds

Reviews for YARDWE (PM Score)

5.1 PM Score
Buy on Amazon
  • Hanging Fertilizer Basket: This is a set of premium fertilizer baskets. Made of plastic, it allows you to apply fertilizer in controlled quantity regularly. Simply insert the head filled with organic fertilizer into the plant grow soil when you are going out for a long time. Perfect use for home, garden, or farm.
  • Fertilizer Flower Basket:Covered design prevents birds from stealing fertilizer. Fertilizer Baskets for Garden Flower Plant Pot Potted Holder
  • Flower Fertilizer Basket:Practical Tools - A set of 50, very affordable, can be used for a long time. It can be directly inserted into the soil, which is simple and convenient to use
  • Fertilizer Control:bonsai fertilizer baskets flower Fertilizer Basket Fertilizer Orchid baskets
  • Flower Fertilizer Box:- Clamshell design prevents birds from stealing fertilizer.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

Mykos Xtreme Gardening 721210, 20 Lb

MYKOS 721210 19.00 X 15.00 X 5.00 Inches

Reviews for MYKOS (PM Score)

5.0 PM Score
Buy on Amazon
  • Enhances root structures for added uptake capabilities
  • Improves efficiency of nutrients & water
  • Can increase yields & secondary metabolites
  • Rhizophagus intraradices 300 propagules / gram
  • Great for vegetables, fruits, herbs, flowers and more
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HTGSupply 8.94 No No No
Buying Guide

A Guide to Selecting the Best Flower Garden Fertilizers

A Guide to Selecting the Best Flower Garden Fertilizers

Understanding the N-P-K Ratio

The most critical factor in selecting a flower fertilizer is the N-P-K ratio found on the packaging. These three numbers represent Nitrogen (N), Phosphorus (P), and Potassium (K). For flowering plants, you want to look for a formula where Phosphorus is prominent. Nitrogen drives foliage growth, Phosphorus is the primary driver for flower and fruit production, and Potassium regulates overall plant health and disease resistance. A 'bloom booster' will typically have a higher middle number, whereas a starter fertilizer for new perennials might have a more balanced profile to establish roots first.

Organic vs. Synthetic Formulations

Your choice between organic and synthetic fertilizers often depends on your gardening philosophy and your soil health goals. Synthetic fertilizers are water-soluble and provide an immediate nutrient hit, making them excellent for correcting deficiencies quickly or for container gardening where nutrients leach out fast. However, they do little to improve soil structure. Organic fertilizers, such as composted manure, bone meal, or fish emulsion, release nutrients slowly over time. While they require more patience, they build long-term soil fertility and encourage beneficial microbial life, which creates a more resilient ecosystem in your garden beds.

Application Method and Delivery System

How you apply the fertilizer is just as important as what is in it. Granular fertilizers are easy to spread across large garden beds and provide a slow, steady release as they break down with watering. They are ideal for established perennials and shrubs. Liquid fertilizers, whether applied via watering cans or foliar sprays, offer much faster absorption. Foliar feeding—spraying a diluted liquid directly onto the leaves—can provide a quick boost to stressed plants, but it should be used sparingly to avoid leaf burn. For those with high-maintenance flower pots, look for slow-release granules designed specifically for containers to prevent over-fertilizing.

Specialized Needs: Micronutrients and pH

Not all flowers are created equal. Some species, particularly acid-loving varieties like azaleas, hydrangeas, or gardenias, require fertilizers with specific micronutrients like iron, magnesium, and sulfur to maintain their vibrant colors. If your soil pH is off, your plants may be unable to absorb the nutrients you provide, regardless of how much fertilizer you use. When shopping, consider whether your specific flower varieties require an 'acidifying' fertilizer or if you need a complete micronutrient blend to prevent yellowing leaves (chlorosis) and stunted growth.

Decision Logic Summary

When making your final selection, follow this logic: If you want immediate results for a specific blooming event, go with a high-phosphorus liquid. If you are looking to build a sustainable, low-maintenance perennial garden, invest in high-quality organic granules. If you are growing in containers, prioritize a slow-release formula to prevent nutrient spikes and crashes.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Flower Garden Fertilizers before you buy.

Granular fertilizers are slow-release and sit on the soil surface, making them ideal for long-term feeding. Liquid fertilizers provide an immediate nutrient boost that is absorbed quickly through the roots or leaves, perfect for correcting deficiencies mid-season.

Look for signs like stunted growth, pale or yellowing leaves, and a lack of blooms. However, always test your soil first, as over-fertilizing can lead to salt buildup and root burn.

These numbers represent the percentage of Nitrogen (for leaf growth), Phosphorus (for flower and root development), and Potassium (for overall plant health and disease resistance). For flowering plants, you generally want a higher middle number (Phosphorus).

While not harmful, vegetable fertilizers are often higher in nitrogen to promote foliage. For flowers, you should prioritize formulas higher in phosphorus to encourage vibrant blooming rather than just lush green leaves.

Annuals typically require more frequent feeding (every 2-4 weeks) because they exhaust soil nutrients quickly. Perennials usually need less frequent applications, often just during their primary growing season in spring and early summer.

Organic fertilizers improve soil structure and microbial life over time, providing a steady, natural nutrient stream. Synthetic fertilizers are more precise and provide instant results but do nothing to improve long-term soil health.

Yes. Excessive fertilizer can cause 'fertilizer burn,' where high salt concentrations dehydrate the roots, leading to brown leaf edges or even plant death. Always follow the application rates recommended on the packaging.
Research & Insights

Our Analysis of Flower Garden Fertilizers

103,937 Reviews Analyzed
159 Products Evaluated
4.8 Avg PM Score
10 Brands Ranked

Top 10 Flower Garden Fertilizers Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Yardwe 7 (15.2%)
  2. 02 General Hydroponics 5 (10.9%)
  3. 03 Southern Ag 5 (10.9%)
  4. 04 Yarnow 5 (10.9%)
  5. 05 Aeiofu 4 (8.7%)
  6. 06 Espoma 4 (8.7%)
  7. 07 Greengro 4 (8.7%)
  8. 08 Hanabass 4 (8.7%)
  9. 09 Miracle-Gro 4 (8.7%)
  10. 10 Simple Lawn Solutions 4 (8.7%)

What Our Analysis Found

We've carried out a comprehensive analysis of 103,937 reviews on Flower Garden Fertilizers, using our selection criteria to identify the best options in the industrial & scientific. Our findings reveal that most customers typically select Flower Garden Fertilizers priced around $44.90, with top brands including hanabass, best fertilizer basket, aeiofu, miracle-gro, chnlml, yarnow, purple cow organics, floralife and followin and alvinlite.

Our team of expert editors reviewed these high-quality items and handpicked the top 30 Flower Garden Fertilizers for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the industrial & scientific category — including ni_orn, obbkk, amazon.com, guoxudianzishangwu, jonercey, purple cow organics, llc, floralife, a division of smithers-oasis co, followin inc and yuensajut-us and esbenshades garden center.

We are dedicated to assisting our users in finding the right fertilizers Products based on their needs, saving them considerable time when choosing which Flower Garden Fertilizers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 30 picks at a glance — select a column to sort.

# Product Brand PM Score Rating Where to Buy
1 Miracle-Gro Leaf Shine, 8-Ounce Green Miracle-Gro 9.9 4.6 (10,543) Buy on Amazon
2 Garden Safe Take Root Rooting Hormone Garden Safe 9.9 4.4 (30,856) Buy on Amazon
3 General Hydroponics FloraSeries Hydroponic Nutrient Fertiliz General Hydroponics 9.8 4.7 (4,759) Buy on Amazon
4 Miracle-Gro LiquaFeed Advanced Starter Kit and Refill Miracle-Gro 9.8 4.8 (433) Buy on Amazon
5 Scotts Evergreen Flowering Tree and Shrub Plant Food Scotts 9.8 4.6 (4,378) Buy on Amazon
6 FoxFarm FX14103 752289501319 Beastie Bloomz, 6-Ounce, Origin FoxFarm 9.8 4.6 (1,125) Buy on Amazon
7 General Hydroponics MaxiGro, 2.2 lb General Hydroponics 9.7 4.7 (341) Buy on Amazon
8 Green Glo Plant Polish 13 oz (20 fl ounces) Green Glo Plant Polish 9.7 4.7 (748) Buy on Amazon
9 Miracle-Gro Performance Organics Garden Feeder and Plant Nutrition Miracle-Gro 9.6 4.4 (2,247) Buy on Amazon
10 Earth Science Fast Acting Lime for Soil Earth Science 9.5 4.5 (476) Buy on Amazon
11 Earthworks Health 99% Pure Urea Nitrogen Fertilizer Earthworks Health LLC 9.5 4.5 (150) Buy on Amazon
12 Mycofungi High Performing Mycorrhizal Inoculant Fungi Mycofungi 9.4 4.4 (153) Buy on Amazon
13 Soil Moist Super Absorbent Polymer Hydro Gel Granules Soil Moist SAP Super Absorbent Polymer 9.1 4.4 (93) Buy on Amazon
14 Hydretain Root Zone Moisture Manager Granular Organic Hydretain 9.0 4.3 (94) Buy on Amazon
15 Medina Plus Liquid Soil Activator Medina 8.6 4.9 (73) Buy on Amazon
16 Chapin HydroFeed 2-Gallon Auto-Mix Fertilizer Injector Chapin International 8.4 3.4 (316) Buy on Amazon
17 EarthPods Premium Garden Herbs & Vegetable Fertilizer – Easy EarthPods 8.4 4.6 (76) Buy on Amazon
18 Espoma Organic Bulb-Tone Natural Fertilizer Espoma 7.2 4.5 (54) Buy on Amazon
19 FOLLOWIN Water Storing Crystals for Indoor and Outdoor Plants FOLLOWIN 6.2 4.6 (31) Buy on Amazon
20 Gaia Green Organics Worm Casting 30 Liter Bag Gaia 5.9 4.5 (27) Buy on Amazon
21 Purple Cow Organics Raised Bed Mix Purple Cow Organics 5.4 4.6 (16) Buy on Amazon
22 Peters Professional Acid Special Fertilizer Peters 5.4 4.9 (10) Buy on Amazon
23 FloraLife Quick Dip Hydrating Flower Treatment Floralife 5.4 5.0 (7) Buy on Amazon
24 Yield Titan Pure Cold Pressed Neem Oil Yield Titan 5.2 4.5 (14) Buy on Amazon
25 CyCO Ryzofuel Root Stimulant CyCO 5.2 5.0 (3) Buy on Amazon
26 Bountea BN3210 Liquid Flower 1 Gal Nutrient, Grey Bountea 5.1 5.0 (2) Buy on Amazon
27 Auraganics BioPro Gold Ormus Plant Booster Auraganics.tech 5.1 5.0 (2) Buy on Amazon
28 Total Biome Organic Soil Conditioner Hose End Spray Total Biome 5.1 5.0 (1) Buy on Amazon
29 Yardwe Nursery Pots 50pcs Orchid Grow Fertiliser Pot Contain Yardwe 5.1 5.0 (1) Buy on Amazon
30 Mykos Xtreme Gardening 721210, 20 lb Mykos 5.0 4.5 (10) Buy on Amazon