HUMBOLDTS SECRET best sellers

#1 Sea Kelp Powder Extract Humboldts Secret Sea Kelp Powder Extract | Water Soluble Fertilizer Seaweed | Concentrated Formula w/Nutrients & Minerals 0-0-16 | for Lawn, Garden, Houseplants, Succulents, Hydroponics, Etc | 2lb

$49.97 on Amazon

#2 Flower Stacker – Best Humboldts Secret Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food - Nutrient System for Potting Soil for Indoor Plants & Outdoor Plants - 1 Quart

$27.97 on Amazon

#3 Set of A & B Liquid Hydroponics Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

$39.97 on Amazon

#4 Flower Stacker – Best Humboldts Secret Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food – Nutrient System for Potting Soil for Indoor Plants & Outdoor Plants - 8 Ounce

$15.98 on Amazon

#5 Sweet & Sticky – Carbohydrate Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Enhance Aroma and Flavor of Plants – Potting Soil for Indoor Plants – Energy for Plants – 8 Ounce

$15.97 on Amazon

#6 pH Up Hydroponic pH Humboldts Secret pH Up - Hydroponic pH Up - pH Up for Plants to Stabilize Nutrient - Plant pH Adjustment - Plant Nutrient pH Levels Optimizer (2.5 Gallon)

$89.99 on Amazon

#7 pH Up and pH Down Control Humboldts Secret pH Up and pH Down Control Kit | Liquid pH Plant Balancer for Soil Gardening & Hydroponics Growing System | Optimal Nutrient Uptake for All Plants (1 Gallon)

$72.99 on Amazon

#8 pH Down | Liquid pH Plant Humboldts Secret pH Down | Liquid pH Plant Balancer for Soil & Hydroponics Growing System (2.5 Gallon)

$84.99 on Amazon

#9 2 Pack 100 1 Garden Hose Humboldts Secret 2-Pack 100:1 Garden Hose End Sprayer | Multipurpose Reusable Bottles for Concentrated Lawn Fertilizer | Use for Lawn Care, Car Wash, Garden Sprayer, Lawn Sprayer, etc. | (32oz)

$24.99 on Amazon