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Humboldts Secret Monopotassium Phosphate 0-52-34 | MKP Fertilizer Bloom Booster for Flowers, Fruits & Vegetables | High Purity Water Soluble Phosphorus and Potassium Plant Food | 2 lb
Regular price From $95.94 USDRegular price$95.94 USDSale price From $95.94 USDHumboldts Secret Monopotassium Phosphate 0-52-34 | MKP Fertilizer Bloom Booster for Flowers, Fruits & Vegetables | High Purity Water Soluble Phosphorus and Potassium Plant Food | 2 lb
Regular price From $95.94 USDRegular price$95.94 USDSale price From $95.94 USDHumboldts Secret Monopotassium Phosphate 0-52-34 | MKP Fertilizer Bloom Booster for Flowers, Fruits & Vegetables | High Purity Water Soluble Phosphorus and Potassium Plant Food | 2 lb
Regular price From $95.94 USDRegular price$95.94 USDSale price From $95.94 USD -
Humboldts Secret pH Up and pH Down Control Kit | Liquid Nutrient Solution Balancer for Plants | for Soil, Hydroponic, Coco, and DWC Systems | Supports Nutrient Absorption and Growth | 32 Ounce
Regular price From $43.94 USDRegular price$43.94 USDSale price From $43.94 USDHumboldts Secret pH Up and pH Down Control Kit | Liquid Nutrient Solution Balancer for Plants | for Soil, Hydroponic, Coco, and DWC Systems | Supports Nutrient Absorption and Growth | 32 Ounce
Regular price From $43.94 USDRegular price$43.94 USDSale price From $43.94 USDHumboldts Secret pH Up and pH Down Control Kit | Liquid Nutrient Solution Balancer for Plants | for Soil, Hydroponic, Coco, and DWC Systems | Supports Nutrient Absorption and Growth | 32 Ounce
Regular price From $43.94 USDRegular price$43.94 USDSale price From $43.94 USD -
Humboldts Secret pH Up - Hydroponic pH Up - pH Up for Plants to Stabilize Nutrient - Plant pH Adjustment - Plant Nutrient pH Levels Optimizer (32 Ounce)
Regular price From $23.94 USDRegular price$23.94 USDSale price From $23.94 USDHumboldts Secret pH Up - Hydroponic pH Up - pH Up for Plants to Stabilize Nutrient - Plant pH Adjustment - Plant Nutrient pH Levels Optimizer (32 Ounce)
Regular price From $23.94 USDRegular price$23.94 USDSale price From $23.94 USDHumboldts Secret pH Up - Hydroponic pH Up - pH Up for Plants to Stabilize Nutrient - Plant pH Adjustment - Plant Nutrient pH Levels Optimizer (32 Ounce)
Regular price From $23.94 USDRegular price$23.94 USDSale price From $23.94 USD -
Humboldts Secret Golden Tree Liquid Plant Food | Enhances Growth Indoors or Outdoors | All-in-One Plant Nutrients for Vegetables, Trees, Flowers, Fruits, Roses, Lawns, Tomatoes | 16 Ounce
Regular price From $39.96 USDRegular price$39.96 USDSale price From $39.96 USDHumboldts Secret Golden Tree Liquid Plant Food | Enhances Growth Indoors or Outdoors | All-in-One Plant Nutrients for Vegetables, Trees, Flowers, Fruits, Roses, Lawns, Tomatoes | 16 Ounce
Regular price From $39.96 USDRegular price$39.96 USDSale price From $39.96 USDHumboldts Secret Golden Tree Liquid Plant Food | Enhances Growth Indoors or Outdoors | All-in-One Plant Nutrients for Vegetables, Trees, Flowers, Fruits, Roses, Lawns, Tomatoes | 16 Ounce
Regular price From $39.96 USDRegular price$39.96 USDSale price From $39.96 USD -
Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 32 Ounce
Regular price From $31.94 USDRegular price$31.94 USDSale price From $31.94 USDHumboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 32 Ounce
Regular price From $31.94 USDRegular price$31.94 USDSale price From $31.94 USDHumboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 32 Ounce
Regular price From $31.94 USDRegular price$31.94 USDSale price From $31.94 USD -
Humboldts Secret Tree Trunk | Potassium Silicate Additive | Liquid Fertilizer for Thicker Stalks, Stress Resistance & Branch Development | Indoor & Outdoor Plant Food, Hydroponic Nutrients, 32 Ounce
Regular price From $29.94 USDRegular price$29.94 USDSale price From $29.94 USDHumboldts Secret Tree Trunk | Potassium Silicate Additive | Liquid Fertilizer for Thicker Stalks, Stress Resistance & Branch Development | Indoor & Outdoor Plant Food, Hydroponic Nutrients, 32 Ounce
Regular price From $29.94 USDRegular price$29.94 USDSale price From $29.94 USDHumboldts Secret Tree Trunk | Potassium Silicate Additive | Liquid Fertilizer for Thicker Stalks, Stress Resistance & Branch Development | Indoor & Outdoor Plant Food, Hydroponic Nutrients, 32 Ounce
Regular price From $29.94 USDRegular price$29.94 USDSale price From $29.94 USD -
Humboldts Secret A & B Liquid Hydroponics Fertilizer - Nutrients for Outdoor, Indoor Plants (1 Gal Set) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $119.00 USDRegular price$119.00 USDSale price $119.00 USD -
Humboldts Secret Flower Stacker Nutrient System for Potting Soil for Indoor & Outdoor Plants (8 oz) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $83.54 USDRegular price$83.54 USDSale price $83.54 USD -
Humboldts Secret Soluble Kelp Extract Powder | 0-0-16 Water Seaweed Fertilizer | Concentrated Nutrients & Minerals for Lawn, Garden, Vegetables, Houseplants, Succulents & Hydroponics | 2 lb Bag
Regular price $79.94 USDRegular price$79.94 USDSale price $79.94 USD -
Humboldts Secret Everything Growing 20-20-20 Fertilizer | All Purpose Water Soluble Plant Food | Balanced NPK with Norwegian Kelp | for Lawns Gardens, Vegetables, Flowers & Indoor Plants | 2 lb
Regular price From $59.94 USDRegular price$59.94 USDSale price From $59.94 USDHumboldts Secret Everything Growing 20-20-20 Fertilizer | All Purpose Water Soluble Plant Food | Balanced NPK with Norwegian Kelp | for Lawns Gardens, Vegetables, Flowers & Indoor Plants | 2 lb
Regular price From $59.94 USDRegular price$59.94 USDSale price From $59.94 USDHumboldts Secret Everything Growing 20-20-20 Fertilizer | All Purpose Water Soluble Plant Food | Balanced NPK with Norwegian Kelp | for Lawns Gardens, Vegetables, Flowers & Indoor Plants | 2 lb
Regular price From $59.94 USDRegular price$59.94 USDSale price From $59.94 USD -
Humboldts Secret Golden Tree - All-in-One Concentrated Additive - Vegetables, Flowers, Fruits, & More (16oz) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $144.32 USDRegular price$144.32 USDSale price $144.32 USD -
Humboldts Secret Flower Shield – Plant and Flower Protection – Healthy Treatment for Pests and Fungus (2 Oz) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $87.32 USDRegular price$87.32 USDSale price $87.32 USD -
Humboldts Secret Everything Growing 20-20-20 Plant Fertilizer for Lawns, Gardens, Fruit Trees, and House Plants (2 lb) w/ 2-Pack 100:1 Garden Hose End Sprayer | Multipurpose Reusable Bottles (32oz)
Regular price $57.00 USDRegular price$57.00 USDSale price $57.00 USD -
Humboldts Secret A & B Liquid Hydroponics Fertilizer - Nutrients for Outdoor, Indoor Plants (32oz Set) w/ 2-Pack 100:1 Garden Hose End Sprayer | Multipurpose Reusable Bottles (32oz)
Regular price $61.00 USDRegular price$61.00 USDSale price $61.00 USD -
Humboldts Secret Indoor LED Grow Room Glasses | Grow Light Glasses LED Protection From Full Spectrum, Red/Blue, & Yellow Lights | Interchangeable Magnetic Sunglasses With UVA/UVB Blocking Protection
Regular price $39.94 USDRegular price$39.94 USDSale price $39.94 USD -
Humboldts Secret Everything Outdoor Plant Food - 5-5-5 Liquid Fertilizer with Kelp - All Purpose Fertilizer (2.5 Gal) w/ 2-Pack 100:1 Garden Hose End Sprayer | Multipurpose Reusable Bottles (32oz)
Regular price $128.00 USDRegular price$128.00 USDSale price $128.00 USD -
Humboldts Secret Fabric Grow Bags - Non Woven Fabric Plant Pots - Reusable Garden Bags - Plant Grow Bags for Indoor and Outdoor Plants - Thick Fabric Pots with Handles (5-Pack) (10 Gallon)
Regular price From $31.98 USDRegular price$31.98 USDSale price From $31.98 USDHumboldts Secret Fabric Grow Bags - Non Woven Fabric Plant Pots - Reusable Garden Bags - Plant Grow Bags for Indoor and Outdoor Plants - Thick Fabric Pots with Handles (5-Pack) (10 Gallon)
Regular price From $31.98 USDRegular price$31.98 USDSale price From $31.98 USDHumboldts Secret Fabric Grow Bags - Non Woven Fabric Plant Pots - Reusable Garden Bags - Plant Grow Bags for Indoor and Outdoor Plants - Thick Fabric Pots with Handles (5-Pack) (10 Gallon)
Regular price From $31.98 USDRegular price$31.98 USDSale price From $31.98 USD -
Humboldts Secret Everything Outdoor Plant Food - 5-5-5 Liquid Fertilizer with Kelp - All Purpose Fertilizer (1 Gal) w/ 2-Pack 100:1 Garden Hose End Sprayer | Multipurpose Reusable Bottles (32oz)
Regular price $75.00 USDRegular price$75.00 USDSale price $75.00 USD -
Humboldts Secret A & B Liquid Hydroponics Fertilizer - Nutrients for Outdoor, Indoor Plants (8oz Set) w/ 2-Pack 100:1 Garden Hose End Sprayer | Multipurpose Reusable Bottles (32oz)
Regular price $47.00 USDRegular price$47.00 USDSale price $47.00 USD -
Humboldts Secret Plant Enzymes – Plant and Root Enzymes – 7000 Active Units of Enzyme per ML (8 oz) w/Everything Kit NPK with Kelp (Everything Indoor, Everything Outdoor, and Everything Growing)
Regular price $86.00 USDRegular price$86.00 USDSale price $86.00 USD -
Humboldts Secret A & B Liquid Hydroponics Fertilizer - Nutrients for Outdoor, Indoor Plants (1 Gallon) w/ 2-Pack 100:1 Garden Hose End Sprayer | Multipurpose Reusable Bottles (32oz)
Regular price $128.00 USDRegular price$128.00 USDSale price $128.00 USD -
Humboldts Secret pH Down | Liquid pH Plant Balancer for Soil & Hydroponics Growing System (1 Gal) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $121.56 USDRegular price$121.56 USDSale price $121.56 USD -
Humboldts Secret A & B Liquid Hydroponics Fertilizer - Nutrients for Outdoor, Indoor Plants (32 oz Set) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $125.32 USDRegular price$125.32 USDSale price $125.32 USD -
Humboldts Secret Tree Trunk - Silicate Additive - Indoor Plant Food - Liquid Fertilizer (32 Oz) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $98.74 USDRegular price$98.74 USDSale price $98.74 USD -
Humboldts Secret Everything Kit 3-in-1 NPK Nitrogen Phosphorus Potassium with Kelp - Everything Indoor Plant Food 3-3-3, Everything Outdoor 5-5-5, and Everything Growing 20-20-20 (The Everything Kit)
Regular price $119.94 USDRegular price$119.94 USDSale price $119.94 USD -
Humboldts Secret Everything Indoor Plant Food with Kelp | Liquid Concentrate 3-3-3 Fertilizer (8 Ounce) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $74.02 USDRegular price$74.02 USDSale price $74.02 USD -
Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Energy for Plants (32 oz) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $108.32 USDRegular price$108.32 USDSale price $108.32 USD -
Humboldts Secret Everything Outdoor Plant Food - 5-5-5 Liquid Fertilizer with Kelp (32 Ounce) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $55.00 USDRegular price$55.00 USDSale price $55.00 USD -
Humboldts Secret Flower Stacker Nutrient System for Potting Soil for Indoor & Outdoor Plants (32 oz) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $106.32 USDRegular price$106.32 USDSale price $106.32 USD -
Humboldts Secret A & B Liquid Hydroponics Fertilizer - Nutrients for Outdoor, Indoor Plants (8 oz Set) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $96.82 USDRegular price$96.82 USDSale price $96.82 USD -
Humboldts Secret Tree Trunk - Silicate Additive - Indoor Plant Food - Liquid Fertilizer (1 Gal) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $174.74 USDRegular price$174.74 USDSale price $174.74 USD -
Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Energy for Plants (8 oz) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $83.52 USDRegular price$83.52 USDSale price $83.52 USD -
Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Energy for Plants (1 Gal) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $91.00 USDRegular price$91.00 USDSale price $91.00 USD -
Humboldts Secret Calcium, Magnesium, and Iron Supplement Liquid Nutrient Fertilizer (32 oz) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses with UVA/UVB Blocking Protection
Regular price $87.32 USDRegular price$87.32 USDSale price $87.32 USD -
Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 32 Ounce Set
Regular price From $39.94 USDRegular price$39.94 USDSale price From $39.94 USDHumboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 32 Ounce Set
Regular price From $39.94 USDRegular price$39.94 USDSale price From $39.94 USDHumboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 32 Ounce Set
Regular price From $39.94 USDRegular price$39.94 USDSale price From $39.94 USD -
Humboldts Secret Everything Growing Plant Food 20-20-20 Plant Fertilizer - Lawns, Gardens, Houseplants (2 lb) w/Grow Room Glasses | Interchangeable Magnetic Sunglasses w/UVA/UVB Blocking Protection
Regular price $48.00 USDRegular price$48.00 USDSale price $48.00 USD
