Jack's Nutrients

- Learn how to grow with Jack's Nutrient Line Basic

- Learn how to grow with Jack's Nutrient Line Advance

Jack's Nutrients - Bloom 10-30-20 - Enhance Flowering and Bud Growth

from $44.95

Boost your plants' flowering power with Jack's Nutrients - Bloom 10-30-20, featuring a trusted 1:3:2 major nutrient ratio. For over 70 years, Jack's Professional growers have relied on this soluble...

Jack's Nutrients - Cal Nit Part B - Soluble Calcium and Nitrate Nitrogen

from $34.95

Complete your nutrient regimen with Jack's Nutrients - Cal Nit Part B, an essential component of a two-part nutrient system. This formula provides a highly soluble and readily available source of c...

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Jack's Nutrients - Clone 10-30-20 - Accelerate Root Growth for Seedlings and Cuttings

$34.95

Jumpstart your new plants with Jack's Nutrients - Clone 10-30-20, specially formulated to promote strong and fast root growth and expansion. Ideal for fertilizing young seedlings, transplants, clon...

Jack's Nutrients - Epsom Salts Magnesium Sulfate (1kg) - Essential for 3-2-1 Program

$34.95

Enhance your nutrient regimen with Jack's Nutrients - Epsom Salts Magnesium Sulfate (1kg), a vital component of the Jack's 3-2-1 program. This high-quality magnesium sulfate provides essential micr...

Jack's Nutrients - Finish 7-15-30 - Optimal Formula for Final Growth Stage

from $34.95

Ensure your plants finish strong with Jack's Nutrients - Finish 7-15-30, specifically formulated for the final growth stage. This unique formula provides very low nitrogen, high phosphorus, and ver...

Jack's Nutrients - Part A 5-12-26 - Optimized Formula for Vegetative Growth

from $34.95

Experience enhanced vegetative growth with Jack's Nutrients - Part A 5-12-26, an improved formula designed for general vegetative growing. This redesigned blend provides purely soluble and availabl...