Best Spray Garden Fertilizers in 2026

Highly fortified calcium, magnesium, and iron plant supplement formulated to correct common deficiencies

Supplement your existing nutrient program with Cal-Mag Plus

To Use: Mix well and use with every watering, as needed, for enhanced growth apply as a foliar spray

Product 1: General Hydroponics FloraGro 2-1-6 delivers nutrients for structural and foliar growth

Product 1: Combine FloraGro 2-1-6 with FloraMicro and FloraBloom to create a nutrient mix tailor-made for your plants and their phase of growth (seedling, cutting, structural, flowering, or fruiting)

Product 1: Ideal for hydroponic applications and as a nutrient supplement for potted plants

Includes 1 lb. of Miracle-Gro Water Soluble All Purpose Plant Food

Trigger lock for one-handed feeding

Features three spray patterns: shower, jet and flat

Mixes only with water based solutions, will not work with oil based

Easily marks grass and lawns

Mix with herbicides, fungicides, pesticides, & fertilizers

Scotts Turf Builder THICK'R LAWN Sun & Shade is a 3-in-1 solution uniquely formulated to help turn your thin lawn into a thicker, greener lawn with stronger roots

Get up to a 50% thicker lawn with just one application (subject to proper care; results may vary based on current condition of lawn)

Lawn improvement product contains grass seed to fill gaps in current lawn, fertilizer for thicker, greener turf, and soil improver to encourage root development

OMRI ​ORGANIC LISTED SEAWEED & KELP FERTILIZER: Liquid Kelp is a natural plant food that provides a range of benefits for plant health and growth. OMRI listed for organic use, GS Plant Foods Liquid Seaweed Fertilizer is a completely natural, seaweed extract fertilizer for plants. Our liquid seaweed will help stimulate natural root growth, mineral uptake and overall plant growth and vigor. This can be applied to any type of soil or plant without concern for waste or harmful chemicals.

ONE OF NATURE’S ‘MIRACLE’ PLANT FOODS: Made from the finest seaweed plant Ascophyllum Nodosum, this is one of nature’s miracle plant foods. Our seaweed extract greatly increases your plant’s resistance to stressors such as excessive heat, wind, drought conditions and more. The seaweed fertilizer for plants will increase the bloom set and size of flowers and fruit. It increases and stabilizes chlorophyll in plants, which results in darker green leaves and increased sugar content in plants.

OPTIMAL PLANT GROWTH & HEALTH AT HOME OR COMMERCIALLY: Used in low concentrations, kelp liquid fertilizer acts as an efficacious growth promoter. GS Plant Foods sea kelp fertilizer is used extensively on a commercial basis, as well as at home for gardeners as an organic soil conditioner. Using GS Plant Foods seaweed plant fertilizer will lead to healthier crop yields and general plant well being.

LIGHT APPLICATIONS - A balanced mix of essential nutrients with low NPK rates to gently feed your live cacti and succulents. Aids and enhances root development, color vibrancy, beautiful bloom, and stem growth in both plant types.

LASTS LONGER, FOR LESS - Easy, ready to use granular formula feeds your plants consistently for 9 months! Simply poke holes or sprinkle around your pot mix, water, and watch your succulent/cactus thrive! Perfect for pots with pumice, pebbles, gravel, perlite, and other organic potting soil mixes.

LIQUID ALTERNATIVE - Excellent alternative to liquid fertilizer in a spray bottle. Great for houseplants that need consistent nutrition year round but less watering.

MADE FOR AIR PLANTS - Our Tillandsia Air Plant Fertilizer Weekly formula is created for all varieties of air plants including Brachycaulus, Bulbosa, Capitata, Caput Medusae, Ferns, Ionantha, Stricta, Xerographica, and other common Epiphytes. Perfect for air plants grown in planters, terrariums, frames, seashells, glass, metal & wood holders.

EASY TO USE - The fertilizer comes in an 8 fl oz. sealed bottle with an ultra-fine mist sprayer designed to mist easily. The convenient pre-mixed liquid formula is ready to use right out of the package. Simply use 3-5 sprays weekly, directly onto air plants, in addition to regular watering and misting.

ENHANCE GROWTH - Keep your houseplants healthy with a gentle and well-balanced formula of all the essential nutrients to boost their growth. Our weekly fertilizer helps air plants with leaf growth, root & pup development, color vibrancy, blooms, hydration, and vitality.

Blended with 4% Seaweed: Liquid Sea Kelp Concentrate blended with Ascophyllum Nodosum Seaweed harvested in the Icy North Atlantic

Blended with 4.5% Humic Acid: Soil Hume is a Highly Concentrated form of Liquefied Carbon Derived from the Highest Quality Humate Source, Leonardite. Leonardite is Considered by many to be the Highest Quality form of Humic Acid

Versatile Formula for Lawn and Garden: Soil Hume Can help increase the Transfer of Nutrients and Help your Lawn, Garden and Plants Uptake Nutrients more Efficiently

Makes Up to 12 Gallons - The 8oz bottle makes 12 gallons of ready to spray neem oil when mixed according to directions

Ready to Mix - Simply mix with water and spray. No surfactants or additional ingredients are required

Cold Pressed - Retains the integrity and original composition of neem oil in its purest form

ORGANIC PLANT FERTILIZER: GS Plant Foods Ocean Magic Sea Minerals works as a soil fertility supplement that re-mineralizes the soil. Ocean Magic is derived from extremely clean sea water. This ocean fertilizer contains all the minerals in the same proportions that those same minerals occur in the blood of healthy animals. Anyone who wants to optimize their garden and improve the mineral content of their soil and vegetation can do so by applying Ocean Magic.

WATER-BASED SPRAY SOLUTION: This mineral fertilizer is 100% water-soluble in contrast to rock powders which are not. Ocean Magic Sea Minerals is helpful to all types of soil and any growing conditions. GS Plant Foods sea fertilizers will produce major improvements in your plant’s growth (volume) and will improve the nutrient value and taste of food products you grow. Our ocean minerals liquid fertilizer is powerful enough for outdoor plants but gentle enough to not burn indoor plants.

SPRAY ON ALL PLANTS OR CROPS: GS Plant Foods Ocean Magic Sea Minerals is a high quality organic fertilizer that gives excellent plant growth. GS Plant Foods liquid plant fertilizer can be applied in your lawn and turf, fruits, vegetables, gardens, and house plants without concern for waste or harmful chemicals. GS Plant Foods house plant fertilizer greatly benefits the development of the plant’s root system, resulting in stronger, healthier plant, enabling growth and nutrient uptake.

ESSENTIAL NUTRIENTS - A balanced mix to feed your ficus that promotes strong root structure, growth and overall better health. Provides the proper nutrients to grow your small fiddleleaf or audrey ficus into a giant!

FOR GREEN GLOSSY LEAVES - Effective for all ficus varieties, indoors and outdoors, this easy to use formula promotes leaves that gloss and shine. Delivers the essential nutrients your plants crave that's lacking from standard organic soil mixes in pots and planters.

GENTLE, STEADY FEEDING - A great alternative to liquid fertilizers that can cause overwatering, our fertilizer pellets added to your plant pot gradually feed with every watering, protecting your delicate houseplant from fertilizer burns and too much water.

SUPERCHARGE your Air plant and Epiphyte collection with a liquid plant fertilizer specially concentrated for convenient weekly applications. Refill your fine misting spray bottle with water, follow the directions to add concentrated solution and shake! Fertilizing formula featuring 16-9-25 NPK and is gentle enough to spray directly on the plants with no mixing and measuring required! Air plants need more care then just air and a weekly spray provides the food they need.

SPOIL YOUR TERRARIUM PLANTS with nutritious food to get them growing! Special concentrated fertilizer easily mixes with with water in your spray bottle to easily gets into all the nooks and crannies making fertilizing application a breeze. Spray bottle makes quick work of watering jellyfish and hanging glass terrarium air plant displays so your plants are healthy and stylish too.

SAVE MONEY by purchasing mini juvenile air plants and grow them into large specimens yourself with optimum care. Nourishing plant food will hydrate your tillandsia air plant assortment and help them reach their peak size as well as encourage pup development and clumping so you aren't just growing your specimens, you're expanding your collection.

Humic Acid Blend: Concentrated Liquid Carbon Derived from the Highest Quality Humate Source

Perk up your Lawn, Garden, and Houseplants: Use alongside your current liquid or granular fertilizer program.

Can Be Used On All Grass types: Including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Florida Palmetto, Bahia, Fescue, Ryegrass & Kentucky Bluegrass

Size: 16 OZ

Corrects and prevents deficiencies that cause yellowing.

Contains 5 balanced essential nutrients including zinc.

WONDERFULLY ORGANIC - Contains premium organic ingredients that naturally feeds and promotes strong roots, vibrant flowers, and overall better long term plant vigor. Light NPK ratio is ideal to use on all potted indoor and outdoor orchid types.

FOR VIBRANT, GROWTH & BLOOMS - Made urea free to gently feed your orchid and protect your plants from root burn while encouraging vibrant leaves, spike growth, and stunning blooms and reblooms!

READY MIXED PLANT MISTER - Already pre-mixed liquid fertilizer in a convenient ready to use spray bottle. Creates a fine mist perfect for gentle weekly feedings that help your plants thrive. Simply grab and spray!

This all purpose plant food increases flower size, quantity and vibrance of color.

Ideal for use on Geraniums, Pansies, Petunias, Impatiens and more. See label for more.

For use both indoor and outdoor. Works best when used as a soil drench combined with a foliar spray.

DESIGNED FOR FRUITS AND VEGETABLES - Our hormone spray makes blossoms set fruit despite poor weather. It is designed for tomatoes but works great on beans, cucumbers, eggplants, melons, okra, peppers, strawberries, and grapes.

GREATER PRODUCTION - Nearly every blossom will produce larger, meatier, healthier, and almost seedless tomatoes.

DUAL PURPOSE USE - This tomato bloom set can be used in both indoor and outdoor garden environments.

ABOUT THE PRODUCT: RAW Yucca is derived from Yucca Schidigera plant. Yucca extract is a natural surfactant or wetting agent. Yucca Schidigera contains saponins, a soapy, steroidal-like substance that acts like a spreader or sticker for horticulural use. Works as a great addition to any foliar spray. Yucca makes water wetter allowing water to penetrate deeper into the soil and plant tissue.

RAW Yucca- Wetting agent that easily mixes into water and is completely soluble.

BENEFITS: High saponin content makes for an excellent surfactant. Food source for beneficial microbes. Increase effectivity of foliar sprays and root zone applications. Yucca helps keep minerals and organics in suspension with one another.

FORMULA: 16-9-25 Air Plant / Bromeliad / Tillandsia Fertilizer

USES: Encourage Reproduction and Blooming for your Air Plants

ABOUT FERTILIZER: Just add 1/4 teaspoon to a gallon of water and soak your air plants in the diluted mixture for 20 to 40 minutes once per month. The package comes with instructions and a one year supply of fertilizer. You may also add the well-diluted fertilizer mixture to a spray bottle and use it to mist your plants. Instructions are included with every packet.

OMRI ​ORGANIC LISTED HYDROLYZED FISH FERTILIZER: Indian River Organics Liquid Fish Fertilizer is an all-natural high quality fish fertilizer that gives excellent plant growth. Plants receiving our organic fish fertilizer out-perform in every category, they are much healthier and more resistant to heat, drought, and cold. This means they bloom more, produce bigger fruit, and taste better. With our organic liquid fish fertilizer, grass spreads faster and needs less maintenance.

PACKED WITH AMINO ACIDS & MICRO NUTRIENTS: The all-natural fish fertilizer for vegetables, plants, and more provide much more than N-P-K (Nitrogen, Phosphorus and Potassium) found in synthetic fertilizers. This organic liquid fish fertilizer provides a comprehensive mix of amino acids & micro nutrients and minerals all in a usable form perfectly suited for maximum efficiency of uptake for your plants. The organic fish fertilizer stimulates water penetration and increases nutrient assimilation.

OPTIMAL PLANT GROWTH & HEALTH AT HOME OR COMMERCIALLY: Used in low concentrations, plant fertilizer liquid organic acts as an efficacious growth promoter. Our liquid vegetable fertilizer is used extensively on a commercial basis, as well as at home for gardeners as an organic soil conditioner. This organic liquid fish fertilizer will lead to healthier crop yields and general plant well being.

Product 1: NO ADDITIONAL WATER NEEDED, JUST SPRAY AND GO: Microbe-Lift Chicken Coop Cleaner is a unique natural solution that is easy to use for experienced & new chicken coop owners; Our strong formula is highly concentrated and requires no additional water to use

High Phosphorus, High Potassium Lawn Food: If your lawn is showing symptoms of a Phosphorus and Potassium deficiency or if you want to maintain lawn health then this is the correct fertilizer for you!

Made With High Quality Feed Grade Ingredients: Nourish your lawn to its top potential with quality liquid lawn Nutrients.

Easy To Use: Designed to be easily applied. This high Phosphorus & Potassium Lawn Food gives your lawn the nutrients it needs for strong root development, vigor, and strength.

Protect your garden from listed fungal diseases with Fung-onil Multi-Purpose Fungicide Concentrate from Bonide!

Chlorothalonil, the active ingredient, is an effective broad-spectrum fungicide that protects and controls fungal diseases in plants.

Prevent common fungal diseases from invading your garden! Fung-onil controls leaf spot, rust, blight, mildew, scab mold and other listed diseases.

TRUSTED BY PROFESSIONALS – For over 15 years, I Must Garden has been the preferred brand of professional gardeners for use in public gardens and resorts. Trusted for its reliability, durability, and pleasant mint scent.

NATURALLY STRONGER – Combines natural ingredients that make plants inedible to deer AND powerful botanical oils that are highly irritating to their sense of smell. Contains triple the number of active ingredients than other repellents for ultimate plant protection

SAFE FOR PLANTS – Safe to spray directly on any plants that are being damaged by deer. Perfect for protecting Perennials (hostas, daylilies, roses, tulips, oriental lilies), Annuals (pansies, impatiens), Shrubs (roses, azaleas, rhododendron, hawthorn), and Vegetables

Liquid Iron, Nitrogen and Micronutrient Blend: Lawn Energizer booster provides essential nutrients needed to darken the green of your lawn

Commercial Size: Covers up to 12,000 square feet. Refill Lawn Energizer sprayer bottle or use with a pump up or other sprayer. Easy to use directions, Quick application.

High Quality Nutrients: Lawn Energizer Booster is a 6-0-0 Nitrogen, Iron and Micronutrient blend.

TWO PRODUCTS IN ONE: FOOP Clone Gel contains both rooting gel + cloning solution. This powerful one-two punch provides a small dab of organic plant food to ensure a quick, healthy start to each plant’s life

GET BIG FAT WHITE FUZZY ROOTS FASTER: accelerates root development with organic , aloe vera, and willow water

MAKES CLONING SIMPLE: Simply moisten rooting cubes (or fill a cloner) with only water pH balanced to 6.0 and that’s it

GREEN BRIGHT LETTUCE: Greenway Biotech lettuce fertilizer has an ample supply of chelated micronutrients, ensuring that your heads of lettuce are bright green, full and delicious.

100% WATER SOLUBLE: This type of hydroponics fertilizer comes in a powdered form and is designed to dissolve quickly in water. Gardeners can stir it into the water in a watering can or fill a garden hose dispenser and spray a large area of plants.

PREMIUM INGREDIENTS: This vegetable fertilizer professionally formulated with quality ingredients and Contains 8% Nitrogen, 15% phosphorous, 36% potassium, boron, copper EDTA, iron EDTA, manganese EDTA, zinc EDTA, and molybdenum, results are distinct & visible

Complete NPK Lawn Food: 16-4-8 is the perfect blend of key macronutrients. This lawn liquid food turf fertilizer also contains Seaweed & Fish.

Contains High Quality Feed Grade Ingredients: Nourish your lawn to health with safe, pure liquid Nutrients. We believe in nourishing your lawn to health the right way.

1 Gallon Sizes covers 12,800 square feet. This complete Nitrogen, Phosphate and Potash formula gives your grass greening & growth while providing nutrients for roots, health and turf strength.

✅21-0-0: Ammonium sulfate is an inorganic water-soluble salt that contains 21% Nitrogen and 24% sulfur

✅IDEAL FOR ACID LOVING PLANTS: Ammonium Sulfate lowers the soils pH which makes it more acidic and less alkaline. Use this fertilizer for your acid loving plants such as rhododendrons, azaleas, hydrangeas, and daffodils.

✅ GREAT VALUE AMMONIUM SULFATE FERTILIZER FOR GARDENING: Offered at a competitive price, our gardening fertilizer helps professional and amateur gardeners get healthy plants without spending a fortune.