Boost your plant's growth and development with Jack's Calcium Nitrate Part B 1kg! This essential nutrient formula provides your plants with the necessary calcium for strong and healthy cell growth....
Jack’s Epsom Salt 1kg
Expertly sourced and formulated, Jack’s Epsom Salt 1kg is a must-have for any enthusiast. With its high quality and purity, it offers a range of potential benefits for your pl...
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 bloomi...
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. Sp...
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. Sp...
Experience the power of Jack's Cal Nit Part B, the essential supplement for your plants. With completely pure and highly soluble sources of calcium and nitrate nitrogen, this two-part nutrient syst...
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 r...
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 kee...
Discover the potential benefits of Jack's Epsom Salt 25lb. This expert-curated product offers a natural solution to a variety of common ailments including muscle soreness, relaxing baths and more. ...
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 kee...
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