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Plant Supplements and Additives

Additives aren’t just extras. They’re powerful growth enhancers that unlock your plant's full potential. Our collection features plant supplements like L‑amino acid boosters, root enhancers, bloom stimulators, enzymes, and microbial inoculants proven to enhance nutrient uptake, support root resilience, and increase flower density.

Use them alongside your base nutrients to push genetics, reduce stress, and simplify feeding routines.

Want to keep your nutrients perfectly blended? Explore our nutrient aerators, mixers, and pumps collection.

HEAVY 16 Veg A 4-0-1 1 Gallon
HEAVY 16 Veg A 4-0-1 Nutrients HEAVY 16
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69

HEAVY 16 Veg A 4-0-1

HEAVY 16

HEAVY 16 Veg A • Improves overall plant nutrition• Improves soil/nutrient conditions for better crop yield• Optimizes soil/nutrient conditions for ...

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$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69
FloraFlex V2 Nutrients 1lb Bag – Vegetative Part 2 Fertilizer 6-17-25.
FloraFlex V2 Nutrients Packaging – 25lb, 5lb, and 1lb Bags for Vegetative Growth. 12% Discount Inside until end of year
$4,000.00
$17.89 - $4,000.00
$4,000.00
$17.89 - $3,500.00
$17.89 - $3,500.00
$17.89

FloraFlex Nutrients V2 Vegetative Part 2

FloraFlex

Support vigorous vegetative growth with a clean, pH stable nutrient formula designed for stronger plants and yields. FloraFlex Nutrients V2 is the ...

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$4,000.00
$17.89 - $4,000.00
$4,000.00
$17.89 - $3,500.00
$17.89 - $3,500.00
$17.89
Save up to $500.00 Save $0.00
Label for Plant Life Co Topaz Finale 0-0-0 showing calcium and sulfur analysis, usage instructions, and mixing guidelines for soil, hydroponic, and outdoor systems.
5-gallon jug of Plant Life Co Topaz Finale 0-0-0, a nitrogen-free calcium and sulfur supplement designed to optimize late-stage plant development and nutrient uptake.
$142.50 - $6,687.50
$142.50
$142.50 - $6,687.50
$142.50 - $6,687.50
$142.50

Plant Life Co Topaz Finale 0-0-0

Plant Life Co.

Lock In Structure and Ripeness with Clean Calcium and Sulfur—No Nitrogen When it's time to finish strong, nitrogen has no place in your tank. This ...

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HEAVY 16 Veg B 1-2-5 1 Gallon
HEAVY 16 Veg B 1-2-5 Nutrients HEAVY 16
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69

HEAVY 16 Veg B 1-2-5

HEAVY 16

HEAVY 16 Veg B • Improves overall plant nutrition• Improves soil/nutrient conditions for better crop yield• Optimizes soil/nutrient conditions for ...

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$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69
HEAVY 16 Bud B 1 Gallon
HEAVY 16 Bud B 1-3-6 Nutrients HEAVY 16
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69

HEAVY 16 Bud B 1-3-6

HEAVY 16

HEAVY 16 BUD B • Improves overall plant nutrition• Improves soil/nutrient conditions for better crop yield• Optimizes soil/nutrient conditions for ...

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$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69
HEAVY 16 Bud A 1 Gallon
HEAVY 16 Bud A 2-0-3 Nutrients HEAVY 16
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69

HEAVY 16 Bud A 2-0-3

HEAVY 16

HEAVY 16 BUD A • Improves overall plant nutrition• Improves soil/nutrient conditions for better crop yield• Optimizes soil/nutrient conditions for ...

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$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69 - $1,784.99
$14.69
FloraFlex B2 Bloom Part 2 fertilizer label 0-28-18, 25 lbs.
FloraFlex B2 Bloom Part 2 complete nutrient lineup in 1 lb, 5 lb, and 25 lb packaging.
12% Discount Inside until end of year
$4,000.00
$17.89 - $4,000.00
$4,000.00
$17.89 - $3,800.00
$17.89 - $3,800.00
$17.89

FloraFlex Nutrients B2 Bloom Part 2

FloraFlex

Support explosive bloom growth with a clean, stable nutrient formula that delivers stronger plants and higher yields. FloraFlex Nutrients B2 is the...

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$4,000.00
$17.89 - $4,000.00
$4,000.00
$17.89 - $3,800.00
$17.89 - $3,800.00
$17.89
Save up to $200.00 Save $0.00
Front label design of FloraFlex B1 Bloom Part 1 nutrients, 25 lbs.
FloraFlex B1 Bloom Part 1 nutrients in multiple package sizes: 1 lb, 5 lb, and 25 lb.
12% Discount Inside until end of year
$4,000.00
$17.89 - $4,000.00
$4,000.00
$17.89 - $3,800.00
$17.89 - $3,800.00
$17.89

FloraFlex Nutrients B1 Bloom Part 1

FloraFlex

Boost bloom stage performance with a clean, pH stable nutrient formula engineered for stronger plants and bigger yields. FloraFlex Nutrients B1 is ...

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$4,000.00
$17.89 - $4,000.00
$4,000.00
$17.89 - $3,800.00
$17.89 - $3,800.00
$17.89
Save up to $200.00 Save $0.00
FloraFlex V1 Vegetative Part 1 1lb resealable bag.
FloraFlex V1 Vegetative Part 1 nutrients in 25lb, 5lb, and 1lb packaging.
12% Discount Inside until end of year
$4,000.00
$17.89 - $4,000.00
$4,000.00
$17.89 - $3,500.00
$17.89 - $3,500.00
$17.89

FloraFlex Nutrients V1 Vegetative Part 1

FloraFlex

Promote strong vegetative growth with a clean, pH stable nutrient formula built for healthier plants and bigger yields. FloraFlex Nutrients V1 is p...

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$4,000.00
$17.89 - $4,000.00
$4,000.00
$17.89 - $3,500.00
$17.89 - $3,500.00
$17.89
Save up to $500.00 Save $0.00
Xtreme Gardening TEA BREWS Easy-To-Use Compost Tea Nutrients Xtreme Gardening
$56.25 - $56.25
$56.25
$56.25 - $56.25
$56.25

Xtreme Gardening TEA BREWS Easy-To-Use Compost Tea

Xtreme Gardening

Making compost tea has never been this easy, or this cost-effective. Xtreme Tea Brews are the most user-friendly, cost-effective method of brewing...

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$56.25 - $56.25
$56.25
$56.25 - $56.25
$56.25
Xtreme Gardening MYKOS WP Pure Mycorrhizal Wettable Powder Nutrients Xtreme Gardening
$27.50 - $1,050.00
$27.50 - $1,050.00
$27.50 - $1,050.00
$27.50

Xtreme Gardening MYKOS WP Pure Mycorrhizal Wettable Powder

Xtreme Gardening

Mykos WP is a natural, organic species of beneficial soil fungi that creates a "sponge-like" mass which collects and stores nutrients and water, ...

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$27.50 - $1,050.00
$27.50 - $1,050.00
$27.50 - $1,050.00
$27.50
SUPERthrive Original Vitamin Solution Nutrients SUPERthrive
$18.38 - $1,001.62
$18.38 - $1,001.62
$18.38 - $1,001.62
$18.38

SUPERthrive Original Vitamin Solution

SUPERthrive

SUPERthrive is a highly concentrated solution of vitamins, minerals and natural plant hormones. SUPERthrive invigorates all variety of greenery ...

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$18.38 - $1,001.62
$18.38 - $1,001.62
$18.38 - $1,001.62
$18.38
Xtreme Gardening AZOS Root Booster/Growth Promoter Nutrients Xtreme Gardening
$21.45 - $859.00
$21.45 - $859.00
$21.45 - $859.00
$21.45

Xtreme Gardening AZOS Root Booster/Growth Promoter

Xtreme Gardening

Azos offers an innovative and economical method for helping plants acquire the nitrogen they need to grow stronger and healthier. The proprietary...

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$21.45 - $859.00
$21.45 - $859.00
$21.45 - $859.00
$21.45
EZ-Clone Rooting Compound Nutrients Grow Light Central 2 oz
EZ-Clone Rooting Compound Nutrients Grow Light Central 1 oz
$12.95 - $42.99
$12.95 - $42.99
$12.95 - $42.99
$12.95

EZ-Clone Rooting Compound

EZ-Clone

EZ Clone Rooting Compound is a specially formulated rooting gel designed to initiate rapid, dense root growth in both softwood and hardwood cutting...

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$12.95 - $42.99
$12.95 - $42.99
$12.95 - $42.99
$12.95
Front and side packaging view of YaraLiva CALCINIT 15.5-0-0 Greenhouse/Solution Grade fertilizer, showing detailed labeling for commercial use with 15.5% nitrogen and 19% calcium content.
25 kg bag of YaraLiva CALCINIT 15.5-0-0, a water-soluble calcium nitrate fertilizer with 19% calcium, ideal for hydroponic and greenhouse crop nutrition.
$45.00 - $45.00
$45.00
$45.00
$45.00 - $45.00
$45.00

YaraLiva CALCINIT 15.5-0-0 with 19% Calcium

Plant Life Co.

Deliver Clean, Fast Nitrogen and Calcium for Unstoppable Veg Growth If you’re chasing lush growth and strong cell walls in early veg, YaraLiva CALC...

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Detailed label of Exotic Ag Bloom 0-16-34 showing guaranteed analysis, feeding instructions, and micronutrient content for enhancing flowering in hydroponic and stock tank setups.
25 lb. bag of Plant Life Co Exotic Ag Bloom 0-16-34 Flower Formula, designed for peak flowering stages with high phosphorus and potassium to support bud development and flower density.
$124.88 - $124.88
$124.88
$124.88
$124.88 - $124.88
$124.88

Plant Life Co Exotic Ag Bloom 0-16-34 - 25 lb. Bag

Plant Life Co.

Stack Heavier Blooms with a 0-16-34 Formula That Delivers More Than Just PK When flower production kicks in, Exotic Ag Bloom 0-16-34 gives your pla...

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Detailed label of Exotic Ag Grow 4-16-32 showing guaranteed analysis, application rates, nutrient breakdown, and usage instructions for hydroponic and stock tank feeding systems.
25 lb. bag of Plant Life Co Exotic Ag Grow 4-16-32 Veg Formula featuring a colorful peacock design, formulated for vigorous vegetative growth with nitrate nitrogen, phosphorus, and potassium.
$124.88 - $124.88
$124.88
$124.88
$124.88 - $124.88
$124.88

Plant Life Co Exotic Ag Grow 4-16-32 - 25 lb. Bag

Plant Life Co.

Build a Stronger, Greener Canopy with a Balanced 4-16-32 Veg Formula When you’re dialing in the veg stage for explosive growth, Exotic Ag’s 4-16-32...

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Label for Plant Life Co Tanzanite Defend 0-0-27 detailing potassium content, application rates for foliar, hydroponic, and soil use, and best practices for maximizing plant resilience and performance.
5-gallon jug of Plant Life Co Tanzanite Defend 0-0-27, a potassium-rich foliar and root application formula designed to support plant stress response and nutrient uptake during key growth phases.
$282.50 - $14,300.00
$282.50
$282.50 - $14,300.00
$282.50 - $14,300.00
$282.50

Plant Life Co Tanzanite Defend 0-0-27

Plant Life Co.

Defend Against Stress and Boost Potassium Uptake with a 27% K Formula When plants hit a wall—whether it’s heat, drought, or disease pressure—Tanzan...

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Label for Plant Life Co Crystal Finish 2-0-0 showing nitrogen content, glycine betaine formula, application rates, and detailed usage instructions for injector, hydroponic, and soil setups.
5-gallon jug of Plant Life Co Crystal Finish 2-0-0 with glycine betaine, designed to support plant health during late growth stages and enhance stress tolerance in hydroponic and soil systems.
$275.00 - $13,200.00
$275.00
$275.00 - $13,200.00
$275.00 - $13,200.00
$275.00

Plant Life Co Crystal Finish 2-0-0

Plant Life Co.

Maximize Plant Stress Tolerance and Yield Stability in Late Flower When your plants are under pressure—from heat, drought, or heavy fruit load—Crys...

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Detailed label for Plant Life Co Diamond Burst 1-5-5 showing bloom-stage application rates, guaranteed analysis, and added ingredients like blackstrap molasses, humic acids, and sea kelp extract.
Gallon jug of Plant Life Co Diamond Burst 1-5-5 Bloom Boost, formulated with nitrogen, phosphorus, potassium, and micronutrients to enhance flower development and nutrient uptake during blooming stages.
$124.75 - $4,881.25
$124.75
$124.75 - $4,881.25
$124.75 - $4,881.25
$124.75

Plant Life Co Diamond Burst 1-5-5

Plant Life Co.

Unleash Explosive Blooms with a Full Spectrum of Macro and Micronutrients When it’s time to stack weight and push color, this 1-5-5 bloom booster d...

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Label details of Plant Life Co Zircon 2-0-10 with 21% silica, showing application rates, guaranteed analysis, and nutrient breakdown for hydroponic, soil, and foliar use.
5-gallon jug of Plant Life Co Zircon 2-0-10 silica supplement with 21% silica, designed to boost plant strength, stress resistance, and potassium levels in hydroponic and soil-based systems.
$375.00 - $375.00
$375.00
$375.00
$375.00 - $375.00
$375.00

Plant Life Co Zircon Silica - 5 Gallon

Plant Life Co.

Strengthen Cell Walls and Boost Stress Resistance with 21% Silica Support If your plants flop under weight, wilt in heat, or break during handling,...

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Product label for Plant Life Co Amber Seedling & Clone 0-0-16, showing application rates, beneficial microbes, humic acids, and North Atlantic sea kelp ingredients for optimal root growth and plant vigor.
2 lb. bag of Plant Life Co Amber Seedling & Clone 0-0-16, featuring an amber crystal design, formulated to boost root mass and nutrient uptake in seedlings and clones.
$89.90 - $89.90
$89.90
$89.90
$89.90 - $89.90
$89.90

Plant Life Co Amber Seedling & Clone 0-0-16 - 2 lb. Bag

Plant Life Co.

Supercharge Early Growth with Beneficial Microbes and Sea Kelp Seedlings and clones are fragile—what you feed them can make or break your grow. Thi...

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Label details of Plant Life Co Onyx Root Boost + 1-0-1 showing application rates, guaranteed analysis, and safety instructions for hydroponic and soil growers.
Gallon jug of Plant Life Co Onyx Root Boost + 1-0-1 root enhancer, featuring humic acids and North Atlantic seaweed for improved nutrient uptake in hydroponic and soil systems.
$420.00 - $21,243.75
$420.00
$420.00 - $21,243.75
$420.00 - $21,243.75
$420.00

Plant Life Co Onyx Root Boost + 1-0-1

Plant Life Co.

Kickstart Root Growth Fast with Humic Acids and North Atlantic Seaweed Tired of sluggish root systems that stall your veg cycle before it even star...

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HEAVY 16 Roots Quart (32 oz)
HEAVY 16 Roots 0.7-1-2 Nutrients HEAVY 16
$104.99 - $11,969.99
$104.99 - $11,969.99
$104.99 - $11,969.99
$104.99

HEAVY 16 Roots 0.7-1-2

HEAVY 16

HEAVY 16 Roots • Improved overall plant nutrition• Improves soil/nutrient conditions for root growth• Support soil conditions for greater root mass...

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$104.99 - $11,969.99
$104.99 - $11,969.99
$104.99 - $11,969.99
$104.99
Xtreme Gardening MYKOS ROOT PAKS Great For Hydro Nutrients Xtreme Gardening
$25.50 - $203.95
$25.50 - $203.95
$25.50 - $203.95
$25.50

Xtreme Gardening MYKOS ROOT PAKS Great For Hydro

Xtreme Gardening

MYKOS Root Paks are conveniently packaged in 10 gram "Biodegradable Paks" for both soil and hydroponic applications. Simply place the pak at the ...

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$25.50 - $203.95
$25.50 - $203.95
$25.50 - $203.95
$25.50
HEAVY 16 Finish 0-0-1 1 Gallon
HEAVY 16 Finish 0-0-1 Nutrients HEAVY 16
$31.49 - $3,254.99
$31.49 - $3,254.99
$31.49 - $3,254.99
$31.49

HEAVY 16 Finish 0-0-1

HEAVY 16

HEAVY 16 Finish • Improves overall plant nutrition• Improves efficiency of applied fertilizers• Supports conditions for better plant establishment ...

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$31.49 - $3,254.99
$31.49 - $3,254.99
$31.49 - $3,254.99
$31.49
HEAVY 16 Foliar 1 Gallon
HEAVY 16 Foliar 1-0-2 Nutrients HEAVY 16
$52.49 - $734.99
$52.49 - $734.99
$52.49 - $734.99
$52.49

HEAVY 16 Foliar 1-0-2

HEAVY 16

HEAVY 16 Foliar • Improves overall plant nutrition• Corrects calcium/magnesium-based plant disorders• Improves tolerance of abiotic stress In our q...

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$52.49 - $734.99
$52.49 - $734.99
$52.49 - $734.99
$52.49
HEAVY 16 Prime 1 Gallon
HEAVY 16 Prime 0-0-3 Nutrients HEAVY 16
$94.49 - $9,029.99
$94.49 - $9,029.99
$94.49 - $9,029.99
$94.49

HEAVY 16 Prime 0-0-3

HEAVY 16

HEAVY 16 Prime • Improves overall plant nutrition• Improves soil/nutrient conditions for better crop yield• Supports microbial populations• Suppor...

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$94.49 - $9,029.99
$94.49 - $9,029.99
$94.49 - $9,029.99
$94.49
HEAVY 16 Fire Quart (32 oz)
HEAVY 16 Fire 1-10-16 Nutrients HEAVY 16
$104.99 - $11,969.99
$104.99 - $11,969.99
$104.99 - $11,969.99
$104.99

HEAVY 16 Fire 1-10-16

HEAVY 16

HEAVY 16 Fire • Improves overall plant nutrition• Improves soil/nutrient conditions for better crop yield• Provides organic matter• Improves soil c...

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$104.99 - $11,969.99
$104.99 - $11,969.99
$104.99 - $11,969.99
$104.99
FloraFlex Full Tilt Nutrients 25lb bag front label showing NPK 0-47-35 for late bloom ripening.
FloraFlex Full Tilt Nutrients packaging set with 25lb bag, 5lb pouch, and 1lb pouch.
12% Discount Inside until end of year
$4,526.32
$17.89 - $4,526.32
$4,526.32
$17.89 - $4,300.00
$17.89 - $4,300.00
$17.89

FloraFlex Nutrients Full Tilt Late Bloom Ripener

FloraFlex

Increase yields and bud quality with an easy-to-use nutrient formula that supports faster, stronger plant growth. When your plants hit late flower,...

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$4,526.32
$17.89 - $4,526.32
$4,526.32
$17.89 - $4,300.00
$17.89 - $4,300.00
$17.89
Save up to $226.32 Save $0.00
Xtreme Gardening CALCARB Foliar Booster Nutrients Xtreme Gardening
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99

Xtreme Gardening CALCARB Foliar Booster

Xtreme Gardening

Add CalCarb to your indoor and outdoor gardening arsenal and create the perfect environment for your plants. CalCarb is a readily available source ...

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$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99
Xtreme Gardening AZOS RED LIQUID Root Booster/Growth Promoter Nutrients Xtreme Gardening
$67.95 - $689.00
$67.95 - $689.00
$67.95 - $689.00
$67.95

Xtreme Gardening AZOS RED LIQUID Root Booster/Growth Promoter

Xtreme Gardening

Experience an improvement in plant establishment and accelerated plant growth with Xtreme Gardening AZOS Red Liquid, a naturally occurring nitro...

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$67.95 - $689.00
$67.95 - $689.00
$67.95 - $689.00
$67.95
Silicium Silicic Acid Nutrients Silicium
Save up to $61.00 Save $0.00
$220.00 - $380.00
$220.00 - $380.00
$220.00
$197.00 - $319.00
$197.00 - $319.00
$197.00

Silicium Silicic Acid

Silicium

Silicium is a pure nutrient that has revolutionized the world of horticulture, giving plants the necessary building blocks for growth. When added t...

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$220.00 - $380.00
$220.00 - $380.00
$220.00
$197.00 - $319.00
$197.00 - $319.00
$197.00
Save up to $61.00 Save $0.00