Jack's Fertilizer

Give yourself peace of mind with high-quality, controlled release fertilizer to grow beautiful, vibrant plants!Key Product FeaturesContains approximately 6lbs of pelleted fertilizerFeeds your plants...

Give your hydroponic setup a solid nutritional foundation to build upon! Key Product Features Jack's Nutrients 5-12-26 Part A features a redesigned blend that is built with purely soluble and...

Get the most from your plants, even at the end of their crop cycles! Key Product Features 7-15-30 Analysis - Promotes a robust plant with a very low nitrogen, high phosphorus and very high potassium...

Give yourself peace of mind with high-quality, controlled release fertilizer to grow beautiful, vibrant plants!Key Product FeaturesFeeds your plants for up to 4 monthsIntended for use on indoor and...

Jack's Classic All-Purpose Plant Food is ideal for everything you grow!Key Product FeaturesJack's Classic 20-20-20 All Purpose Fertilizer is considered the industry standard of general purpose...

Give your hydroponic system a boost and make your plants happy with calcium and magnesium in one bag!Key Product Features15-5-15 Analysis - Comprehensive fertilizer with all the macro and micro...

Give your hydroponic setup a boost with Jack's Nutrients!Key Product Features15-5-20 Analysis - Works with city and well water to lower the pH for optimal nutrient absorptionWater-Soluble Powder -...

Enhance the health of your citrus fruit plants!Key Product Features20-10-20 Analysis - Great for producing vibrant green leaves, strong branches, and more fruit in tropical fruiting plants.Many Ways...

Boost your hydroponic garden with reliable, water-soluble fertilizer!Key Product Features20-20-20 Analysis - Great for providing fast green-up and rapid leaf expansion in all outdoor grown plants...

Part two of a complete hydroponic fertilizer system!Key Product Features15-0-0 Analysis - Provides a very soluble and available source of calcium and nitrate nitrogen sources. Works in tandem with...

Give your new plants a better start with remarkable root growth!Key Product Features15-6-17 Analysis - Promotes strong and fast root growth and expansion for seedlings, transplants, clones, and newly...

Give your hydroponic system a boost with Jack's Nutrients!Key Product Features12-4-16 Analysis - This one part nutrient blend is designed for crops grown in very low alkalinity waters such as reverse...