Foliar Sprays

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Foliar Nutrient: "Any liquid substance applied directly to the foliage of a growing plant for the purpose of delivering an essential nutrient in an immediately available form." per www.websters-online-dictionary.com

Did you know that plants absorb nutrients just a quickly through their leaves as they do their roots? Foliar feeding provides an almost instant intake of nutrients. Learn more at our Foliar Feeding FAQ page.

(See complete price list here)

Sort by manufacturer: Advanced Nutrients, Age Old, American Hydroponics, B'Cuzz, BioAg, BioBizz, Botanicare, CANNA, Cutting Edge Solutions, Dutch Master, Earth Juice, Ecological Laboratories, FoxFarm, General Hydroponics, Generic, Greenway Nutrients, Grotek, Halo, Heavy 16, Higrocorp, House and Garden, Humboldt Countys Own, Humboldt Nutrients, Hydrodynamics International, Oregons Only Organics, Primordial Solutions, Rambridge, Roots Organics, SaferGro, Spray-N-Grow, Supernatural, Technaflora, Xtreme Gardening

Advanced Nutrients Organic B

Advanced Nutrients Organic B helps plants handle the stress of intense hydroponic gardening. This 100% organic nutrient supplement contains a wide range of B vitamins that strengthens your crops by promoting faster nutrient absorption.
$35.89 - $110.07

Age Old Fish and Seaweed

Age Old Organics Fish and Seaweed: Age Old Fish and Seaweed is an organic fertilizer that works well in both soil and hydroponics.
$12.50 - $34.95

Age Old Organics Ca-Libur 20

Ca-Libur 20 is an organic liquid calcium supplement used for correcting calcium deficiencies in order to help strengthen the cell walls of your plants.
$5.99 - $26.95

Age Old Organics Kelp

Age Old Organics Kelp: Age Old Organics Liquid Kelp concentrate is the original soil and plant bio-stimulant! Made from Norwegian Sea Kelp (Ascophyllum Nodosum), Age Old Kelp is 100% organic.
$7.95 - $69.95

Algen Extract

House & Garden Algen Extract promotes vigorous vegetative growth as well as aiding plant nutrient uptake.
$32.39 - $341.99

Ancient Amber

Roots Organics Ancient Amber is specially extracted for low molecular weight from Leonardite, a rare form of lignite coal composed of ancient plant material.
$15.25 - $38.95

B'Cuzz Foliar

B'Cuzz Foliar was developed by Atami to enhance the performance of plant stimulants during all phases of plant growth and development.
$26.95 - $80.95

Bills Perfect Fertilizer - 8 oz

Bill's Perfect Fertilizer is a liquid concentrate that lasts indefinitely, so you can use it from year to year. Get good results with indoor or outdoor plants. Great for lawns too.
$6.95

BioAg CytoPlus - 100 g

A combination of soluble seaweed extract and seven micronutrients, BioAg CytoPlus is an excellent source of beneficial organic compounds, including humic and fulvic acids.
$12.79

BioAg Ful-Humix - 100 g

BioAg Ful-Humix is a water soluble humic powder and soil/nutrient activator. It increases nutrient efficiency and uptake, increases cellular activities at all levels.
$9.59

BioBizz LeafCoat - 500 mL

BioBizz LeafCoat is a natural latex-based foliar spray that was designed to protect your plants against fungi and disease.
$22.95

BIOCANNA BioBoost

BIOCANNA Bio Boost is a naturally fermented plant extract that is 100% organic. Developed for use during the blooming stage, this supplement stimulates the development of newly formed flowers to generate fuller fruit with more flavor!
$84.95 - $384.95

Blast-Off Fertilizer

Contains high potency natural vitamins and hormones that act as cofactors or substrates for specific plant enzymes.
$11.00 - $26.40

Bud Factor X

Advanced Nutrients Bud Factor X is a liquid hydroponics bud builder formula that is guaranteed to increase crop yields and essential oil production by stimulating plant defense mechanisms.
$53.05 - $216.31

Bush Doctor Flowers Kiss

Bush Doctor Flowers Kiss foliar spray is an organic topical plant food designed to be easily absorbed through stomata on plant leaves.
$16.49 - $56.95

CalCarb Foliar Spray - 6 oz

Xtreme Gardening CalCarb is a foliar spray derived from naturally existing calcium carbonate. It provides the carbon dioxide needed to achieve optimum photosynthesis performance - effectively maximizing your plants growing potential.
$42.50

CANNA Boost Accelerator

CANNA Boost Accelerator is made of naturally fermented plant extracts that stimulate the development of newly formed flowers.
$33.25 - $459.95

Coco-Wet Organic Wetting Agent - 8 oz

Coco-Wet wetting agent is completely organic, nonionic, and compatible with all nutrient sprays.
$5.95

Cutting Edge Mag Amped

Are your plants suffering from short daylight hours or low light intensity? Mag Amped is your solution!
$24.95 - $156.95

Cutting Edge Plant Amp

Cutting Edge Solutions Plant Amp: Developed by Cutting Edge Solutions, Plant Amp is pure calcium, chelated with organic acids to improve plant absorption. Use it in your reservoir or as a foliar spray.
$24.95 - $156.95

Cutting Edge Uncle Johns Blend

Uncle John's Blend is used throughout your plant's growing cycle to supply potassium to plants, delivered through a matrix of sugars (carbohydrates).
$77.50 - $156.95

Dark Energy

American Hydroponics Dark Energy significantly shortens your time-to-harvest while increasing plant yields. It helps plants absorb the benefits of fertilizers so you can lower the amount of fertilizer you are using. Many growers have reported seeing a difference within 24 hours!
$37.95 - $119.95

Diamond Nectar

Contains the highest quality, most effective fulvic acid available and is safe to mix with hydroponics solutions, soil, or foliar applied fertilizers.
$15.75 - $82.75

Dutch Master Liquid Light

Dutch Master Gold Range Liquid Light foliar spray is designed to dramatically improve the way your plant processes your HID or flourescent lighting. Amazingly, it gives your plants the equivalent of up to 60% more usable light!
$49.95 - $168.95

Dutch Master Saturator Gold

Penetrator has evolved into Dutch Master Gold Range Saturator! This unique delivery agent can deliver everything contained in your foliar spray into the plant via the leaf without harming leaf integrity.
$24.95 - $99.95

Earth Juice Catalyst Activator

Earth Juice Catalyst is a 100% organic additive that conditions soils and hydroponic solutions for better nutrient availability.
$11.65 - $26.95

Earth Juice Meta-K Potassium Fertilizer

Earth Juice Meta-K is a 100% natural liquid potassium nutrient for maturing, fruiting, and flowering plants that require more potassium.
$10.95 - $25.29

Earth Juice Microblast Minerals

Earth Juice Microblast is a proprietary liquid micronutrient formula to be used to prevent and correct micronutrient deficiencies.
$13.60 - $22.30

Ecklonia Kelp Plant Growth Stimulant

Ecklonia Kelp Plant Growth Stimulant is a 100% organic nutrient supplement that is made from Ecklonia Maxima, an edible species of brown kelp seaweed. It is completely non-toxic to humans, animals, birds and insects.
$14.95 - $99.95

Equilibrium Natural

Humboldt Nutrients created Equilibrium Natural to give you an easy to use one-part calcium and magnesium additive in the correct ratios to produce strong healthy plants.
$16.13 - $56.25

FossilFuel

Europonic FossilFuel from Hydrodaynamics helps plants resist environmental stress, diseases and pests. Use as a nutrient solution or a foliar spray.
$15.25 - $33.95

Ful-Power Humic Acid

Often referred to as the champagne of humic acids, BioAg Ful-Power Humic Acid is an excellent choice for all gardening applications.
$17.95 - $96.95

Fulvex Trace Minerals

Botanicare Fulvex increases the availability of nutrients while enhancing mineral diffusion into root cells without the use of harsh chemicals.
$15.25 - $38.25

G-Rex Biological Stimulator

Cutting Edge G-Rex was formulated to work throughout the entire growth cycle from the rooted cutting stage all the way until harvest. You can apply it to cuttings as soon as the callus forms at their base.
$10.95 - $106.95

Ginormous Bloom Enhancer

Humboldt Nutrients specifically formulated Ginormous Bloom Enhancer to help your favorite plants yield the largest fruits, higher brix levels and better aromas.
$22.50 - $75.00

Grandma Enggys F-1 Fulvic Acid

100% organic! Grandma Enggy's F-1 helps your plants grow faster and produce higher quality harvests. It increases nutrient absorption, nutrient transport, and more cellular metabolism than any other Fulvic extract.
$27.63 - $90.45

Grandma Enggys H-2 Humic Acid

Grandma Enggy's H-2 Humic Acid is 100% organic magic! Rich in several minerals needed for optimum plant growth, it helps convert a variety of elements into easily absorbed forms for healthy crops.
$27.63 - $90.45

Grotek Pro-Silicate

Grotek's Pro-Silicateā„¢ is a nutritional silicate additive containing potassium and silicon. This combination of ingredients acts as a tranpirant to help increase your plants' resistance to heat and drought. (A must for cloning.)
$9.45 - $28.95

Halo

Halo is the first product based on an entirely new class of plant growth additive that utilizes the Harpin Alpha Beta protein, an extensively tested plant technology.
$17.50 - $89.95

Heavy 16 Foliar

Full spectrum plant nutrition and protection foliar spray that is easy absorbed into negatively charged foliage to strengthen the canopy and roots.
$41.95 - $139.95

Humboldt Nutrients DeuceDeuce

Organic DeuceDeuce, from Humboldt Nutrients, contains large amounts of potassium derived from Probiotic Potassium, and Sulfate Of Potash.
$15.00 - $52.50

Humboldt Nutrients HydroDeuce

Humboldt Nutrients HydroDeuce is a lower-viscosity formula of the popular DeuceDeuce nutrient. HydroDeuce is specifically designed to be used with hydroponics systems. It won't clog your pumps or drip lines.
$16.50 - $57.38

Humboldt Nutrients Sea Cal

Humboldt Nutrients' Sea Cal is a powerful fertilizer additive designed for hydroponics gardening, with any growing medium. Safely use it on your vegetables, flowers, or herbs!
$25.50 - $97.50

Humboldt Nutrients Verde

In Spanish, verde translates into green, and green is what you'll get when you use Humboldt Nutrients' Verde in your garden! This one-part organic growth catalyst can also be used as a foliar spray with either hydroponics or soil-based gardens.
$16.88 - $60.00

Humboldt Sticky

Humboldt Sticky is a premium sticking and wetting agent which has been formulated using ingredients which are unavailable in similar products.
$13.88 - $22.50

Humboldt Structural Integrity

Humboldt Nutrients Structural Integrity (S.I.) is a silicate supplement designed for use with hydroponics systems but can be used with soil.
$18.76 - $66.38

Hygeia Hydration

Nectar for the Gods Hygeia Hydration is the blending tool for this line of plant nutrients.
$13.50 - $85.95

Increase Bloom - 16 oz

Increase Grow and Increase Bloom are revolutionary all-in-one foliar fertilizers that deliver professional grade CO2 directly to plant leaf surfaces.
$18.50

Increase Grow - 16 oz

Increase Grow and Increase Bloom are revolutionary all-in-one foliar fertilizers that deliver professional grade CO2 directly to plant leaf surfaces.
$18.50

Instant Jungle Foliar Spray - 15.8 oz - INTRO PRICE

When you supplement a standard fertilizer program with Instant Jungle, your plants will thrive at a whole new level.
$13.50

Jacks Classic Blossom Booster - 1.5 lb

Jack's Classic Blossom Booster is a professional formula that helps your plants grow more flowers with brighter colors.
$8.99

Magic Green

House & Garden Magic Green is a foliar spray that nourishes your plants from the outside in, helping to green-up plants during any growth phase.
$29.69 - $86.39

Microbe Life Foliar Spray and Root Dip - 1 quart

Microbe Life Foliar Spray and Root Dip contains Ecto and Endo Mycorrhizal Fungi that live on the roots of your plants to form a healthy symbiotic relationship.
$19.95

Nitrozime Marine Algae Extract

Nitrozime stimulates plant growth by increasing cell division which improves yield by decreasing plant stress. Nitrozime is also effective as a seed treatment. Cytokinins, the natural plant growth hormones which are necessary for plant growth, nutrient mobilization and distribution, germination, cell division, root development, flowering and seed formation are the core of Nitrozime formulation.
$33.95 - $194.95

Organa-Add (liquid)

Plants will green up and harden up faster when cuttings are foliar fed with Organa-Add. It increases the rate of nutrient absorption and helps plants withstand environmental stress.
$19.95 - $69.95

Pegasus Potion

Nectar for the Gods Pegasus Potion feather tea is a new concept of nitrogen delivery for your plants.
$13.50 - $79.95

Piranha Beneficial Fungi Liquid

Piranha Beneficial Fungi liquid is a powerful weapon against Nematodes, disease, mold and mildew. When used as a foliar spray, Piranha protects against gray mold, mildew, Pythium, Rhizoctania solani, Fusarium, Sclerotium rolfsii, Sclerotinia homoeocarpa and other microbes that that can harm your plant's leaves and flowers.
$64.06 - $170.86

Piranha Beneficial Fungi Powder

Piranha Beneficial Fungi powder is a powerful weapon against Nematodes, disease, mold and mildew. When used as a foliar spray, Piranha protects against gray mold, mildew, Pythium, Rhizoctania solani, Fusarium, Sclerotium rolfsii, Sclerotinia homoeocarpa and other microbes that that can harm your plant's leaves and flowers.
$30.15 - $170.86

Poseidonzyme

Nectar for the Gods Poseidonzyme (Notrozyme) is a 100% organic liquified seaweed supplement rich in organic acids and over 60 naturally occurring major and minor nutrients and amino acids.
$19.75 - $116.95

Pure Flowers

There is no other flowering supplement like Pure Flowers. It's got Phosphite Technology which Higrocorp invented. The unique molecular structure of a phosphite is easily absorbed through the roots and leaves ensuring the crop instantly uptakes potassium and phosphorus.
$25.95 - $79.95

Purple Maxx

Purple Maxx Snow Storm contains active amino acids that enhance the intensity of color on flowers, fruits and vegetables throughout the ripening stage.
$24.95 - $69.95

Rhizotonic Root Stimulator

Use CANNA Rhizotonic to revitalize and energize the root systems on your plants. Full of vitamins, trace minerals and 60-plus microbiologicals, its a good choice for seed soaking, plant cuttings, transplants or poorly developed plants.
$259.95 - $489.95

SaferGro Natural Wet - 1 quart

Natural Wet is an organic wetting agent designed to alleviate the stress plants suffer under unfavorable conditions. During times of heat and moisture stress, it aids plants by helping regulate water usage and increase their tolerance to these stresses.
$12.69

Sea Green Beneficial Biologics

Useful in both soil and hydroponics gardening, Sea Green breaks down nutrients so they can easily be absorbed by your plants.
$49.95 - $99.95

Spray-N-Grow (liquid) - 8 oz

Foliar feed your flowers, fruit or veggies with Spray-N-Grow and you'll see amazing results! Spray-N-Grow is a micronutrient complex, cultured in a water base, that acts as a biocatalyst.
$11.95

Supernatural Green Stay

Supernatural brand Green Stay can be used as a nutrient additive or as a foliar spray to help revive stressed plants.
$11.65 - $31.95

Supernatural Ultimate Thrive

Supernatural Brand Ultimate Thrive is a pure blend of vitamins, minerals, plant nutrients and natural growth hormones that work together to increase the overall health and size of your plant, resulting in maximum yield.
$26.95 - $49.95

SuperNova biostimulant

SuperNova is more than just a seaweed extract! It is a unique blend of seaweed extract (derived from the sea plant Ascophyllum nodosum), specialized amino acids, carbohydrates, vitamin C and B vitamin complex. This enhanced seaweed bio-blend will improve the growth performance of any plant and can be used during any portion of the growing stage.
$22.95 - $104.95

T-Rex - Biological Stimulator

Cutting Edge T-Rex is to be used during the first three weeks of the vegetative cycle of your plants. Only use it on rooted clones or vegetative plants. Also impressive for regenerating a tired mother plant.
$11.89 - $79.95

Tarantula Beneficial Bacteria Liquid - 250 mL

Advanced Nutrients Tarantula Liquid contains 57 types of microscopic organisms that colonize plant roots and leaves to guard against hostile bacteria and fungi attack. Ideal for both soil and hydroponic growing mediums. Tarantula protects seedlings, plant clones and adult plants.
$62.10

Tarantula Beneficial Bacteria

Advanced Nutrients Tarantula Powder contains 57 types of microscopic organisms that colonize plant roots and leaves to guard against hostile bacteria and fungi attack. Ideal for both soil and hydroponic growing mediums. Tarantula protects seedlings, plant clones and adult plants.
$30.15 - $170.86

Thrive Alive B-1 Green

Thrive Alive B-1 Green, from Technaflora, is highly effective, safe, affordable, and easy-to-use organic all-purpose plant tonic. It stimulates rapid and lush vegetative growth. The professionally balanced formulation contains vitamins, hormones, macro and micro nutrients cultured in premium quality organic British Columbian sea kelp.
$19.95 - $33.95

True Blooms Foliar Spray

True Blooms Foliar Spray: Primordial Solutions True Blooms is a food-grade foliar spray designed to induce rapid fruiting and flowering.
$9.95 - $49.95

Wet Betty Organic - 1 liter

Wet Betty Organic is a completely organic surfactant. This non-ionic product contains only the highest quality ingredients.
$38.65
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