H-K

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.

IMPROVES OVERALL PLANT NUTRITION CORRECTS CALCIUM/MAGNESIUM-BASED PLANT DISORDERS IMPROVES TOLERANCE OF ABIOTIC STRESS

Professional formula for more flowers and brighter colors on all outdoor and indoor plants. Includes minor nutrients, too. Plastic tub with 100% waterproof labeling.

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...

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...

IMPROVES OVERALL PLANT NUTRITION IMPROVES SOIL/NUTRIENT CONDITIONS FOR BETTER CROP YIELD PROVIDES ORGANIC MATTER IMPROVES SOIL CONDITIONS FOR INCREASED PLANT VIGOR

Magnesium Boost supports longer vegetative growth and larger-leafed varieties by supplying additional magnesium and nitrogen. Magnesium and nitrogen are central components of chlorophyll, the plant pigment that absorbs light and harbors photosynthesis.

Magnesium Boost supports longer vegetative growth and larger-leafed varieties by supplying additional magnesium and nitrogen. Magnesium and nitrogen are central components of chlorophyll, the plant pigment that absorbs light and harbors photosynthesis.

IMPROVES OVERALL PLANT NUTRITION IMPROVES SOIL/NUTRIENT CONDITIONS FOR BETTER CROP YIELD PROVIDES ORGANIC MATTER IMPROVES SOIL CONDITIONS FOR INCREASED PLANT VIGOR

House & Garden Roots Excelurator Silver is the classic formula that is compatible in hydroponic and recirculating systems.

House & Garden Roots Excelurator Silver is the classic formula that is compatible in hydroponic and recirculating systems.

House & Garden Roots Excelurator Gold is for soil, coco and peat applications. The world-famous Roots Excelurator with its well-kept secret formula, is used for cuttings, seedlings and plants in the vegetative and early flowering stages.