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6 Items Found.Viewing Page 1 of 1 Sort by
Type: Grow Materials
Subtype: Fertilizers
Jack's Classic All Purpose (20-20-20) is a balanced blend of Nitrogen, Phosphorus and Potassium with fully chelated trace elements that work well on all plant materials as a general-purpose fertilizer. It's especially effective on indoor foliage plants to keep leaves green and healthy.
Type: Grow Materials
Subtype: Fertilizers
Jack's Classic plant nutrient formulas use only the highest quality, technical grade materials. Jack's Classic All Purpose (20-20-20) is a balanced blend of Nitrogen, Phosphorus and Potassium with fully chelated trace elements that work well on all plant materials as a general-purpose fertilizer. It's especially effective on indoor foliage plants to keep leaves green and healthy.
Type: Grow Materials
Subtype: Fertilizers
Jack's Classic Blossom Booster (10-30-20) helps plants set abundant buds that mature fully into vibrant, beautiful and colorful flowers, and helps keep leaves green.
Type: Grow Materials
Subtype: Fertilizers
Jack's Classic Blossom Booster (10-30-20) helps plants set abundant buds that mature fully into vibrant, beautiful and colorful flowers, and helps keep leaves green.
Type: Grow Materials
Subtype: Fertilizers
Originally developed for orchid farmers, Jack's Professional Blossom Booster (10-30-20) formula helps plants set abundant buds that mature into vibrant, colorful flowers and helps keep leaves green.
Type: Grow Materials
Subtype: Fertilizers
Jack's Professional All Purpose (21-5-20) plant nutrient formula uses only the highest-quality, technical-grade materials. This general-purpose fertilizer features a balanced blend of nitrogen, phosphorus and potassium with fully chelated trace elements. It's especially effective on indoor foliage to keep leaves green and healthy.