Jack's Nutrients
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Jack's Nutrients Jacks Classic 1.5 Lb 20-20-20 All Purpose Fertilizer
More professional growers have used this product for all their growing needs than any other formula. It is a balanced blend of Nitrogen, Phosphorus and Potassium with fully chelated trace elements that works on all plant materials as a general-purpose fertilizer. Indoors it is especially effective on foliage plants to keep leaves green and happy.
$14.99
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Jack's Nutrients Jacks Classic 10-30-20 Blossom Booster 4LB
Professional formula for more flowers and brighter colors on all outdoor and indoor plants. Includes minor nutrients, too. Plastic tub with 100% waterproof labeling.
$31.49 $28.34
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Jack's Nutrients Jack's Nutrients 10-30-20 Bloom 1kg 2.2LB
Need a Boost of Flower Power? Our 1:3:2 major nutrient ratio has been trusted by Jack's Professional growers for over 70 years. This soluble and available nutrient combination stimulates blooming, resulting in heavy bud and fruit set.
$27.49 $24.74
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Jack's Nutrients Jacks Classic 1.5 Lb 10-30-20 Blossom Booster Fertilizer
Professional formula for more flowers and brighter colors on all outdoor and indoor plants. Includes minor nutrients, too. Plastic tub with 100% waterproof labeling.
$14.99
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Jack's Nutrients Jacks Classic All Purpose 20-20-20 Fertilizer 4 LB
More professional growers have used this product for all their growing needs than any other formula. It is a balanced blend of Nitrogen, Phosphorus and Potassium with fully chelated trace elements that works on all plant materials as a general-purpose fertilizer. Indoors it is especially effective on foliage plants to keep leaves green and happy.
$31.49 $28.34
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Jack's Nutrients Jacks Nutrients Finish 7-15-30 - 25LB
You've always been told to finish strong. This formula is ideally formulated for this purpose to provide your plants with a very low nitrogen, high phosphorus and very high potassium content to keep the whole plant happy to the end of its crop cycle.
$104.25 $93.82
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Jack's Nutrients Jack's Classic 10-30-20 Bloom 25LB
Need a Boost of Flower Power? Our 1:3:2 major nutrient ratio has been trusted by Jack's Professional growers for over 70 years. This soluble and available nutrient combination stimulates blooming, resulting in heavy bud and fruit set.
$135.50 $121.95
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Jack's Nutrients Jacks Nutrients Clone 15-6-17 - 2.2LB
Like a shot gun start for your new plants - this formula will help promote strong, and fast root growth and expansion. Best used for fertilizing young seedlings, transplants, clones and newly set rooted cuttings.
$24.49 $22.04
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Jack's Nutrients Jacks Nutrients Finish 7-15-30 - 2.2 LB
You've always been told to finish strong. This formula is ideally formulated for this purpose to provide your plants with a very low nitrogen, high phosphorus and very high potassium content to keep the whole plant happy to the end of its crop cycle.
$26.49 $23.84
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Jack's Nutrients Jacks Nutrients Ultraviolet 5-50-18 - 2.2LB
Get ready for a serious boost of available phosphorus. The primary goal of this formula is to assist in shutting down the strong vegetative growth stage of the plant and stimulate a switch to the reproductive or flowering phase of plant and flower development.
$28.99 $26.09
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Jack's Nutrients Jacks Nutrients Part A 5-12-26 - 2.2LB
An improvement on the classic "Part A" formula for general vegetative growing. This redesigned blend is built with purely soluble and available nutrients to allow the grower maximum flexibility. Specific balance of macro, secondary and micronutrients delivers an efficient combination of nutrients suitable for many different growing environments and crop types.And don't forget 15-0-0 Cal Nit Part B of this two part system!
$25.99 $23.39
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Jack's Nutrients Jacks Nutrients Part A 5-12-26 - 25LB
An improvement on the classic "Part A" formula for general vegetative growing. This redesigned blend is built with purely soluble and available nutrients to allow the grower maximum flexibility. Specific balance of macro, secondary and micronutrients delivers an efficient combination of nutrients suitable for many different growing environments and crop types.
$96.75 $87.08
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Jack's Nutrients Jacks Nutrients Ultraviolet 5-50-18 - 25LB
Get ready for a serious boost of available phosphorus. The primary goal of this formula is to assist in shutting down the strong vegetative growth stage of the plant and stimulate a switch to the reproductive or flowering phase of plant and flower development.
$144.00 $129.60
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Jack's Nutrients Jacks Nutrients Clone 15-6-17 - 25LB
Like a shot gun start for your new plants - this formula will help promote strong, and fast root growth and expansion. Best used for fertilizing young seedlings, transplants, clones and newly set rooted cuttings.
$93.75 $84.38
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Jack's Nutrients Jacks Nutrients Cal Nit Part B 15-0-0 - 25LB
An essential "Part B" provides a very soluble and available source of calcium in a two-part nutrient system. Contains very pure and completely available calcium and nitrate nitrogen nutrient sources.
$59.99 $53.99
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Jack's Nutrients Jacks Nutrients Cal Nit Part B 15-0-0 - 2.2LB
An essential "Part B" provides a very soluble and available source of calcium in a two-part nutrient system. Contains very pure and completely available calcium and nitrate nitrogen nutrient sources.
$22.49 $20.24
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Jack's Nutrients Jacks Classic All Purpose 20-20-20 Fertilizer 10 LB
More professional growers have used this product for all their growing needs than any other formula. It is a balanced blend of Nitrogen, Phosphorus and Potassium with fully chelated trace elements that works on all plant materials as a general-purpose fertilizer. Indoors it is especially effective on foliage plants to keep leaves green and happy.
$57.49 $45.99
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Jack's Nutrients Jack's Professional Epsom Salt - 2.2lb - Magnesium Sulfate
Magnesium sulfate is an essential item to the Jack's® 3-2-1 program. NPK Ratio : 15-0-0.
$25.00 $20.00
