The General Hydroponics KoolBloom 16lb is a highly concentrated dry soluble nutrient supplement specifically formulated to promote abundant flowering and facilitate ripening in annual flowers and herbs at the very end of the plant’s life cycle. With a 2-45-28 NPK ratio, General Hydroponics KoolBloom delivers an extreme phosphorus and potassium loading alongside precise ripening elements — driving larger, heavier fruits and flowers and accelerating the final ripening phase for maximum yield and quality at harvest.
The 16lb size of General Hydroponics KoolBloom is the ideal high-volume option for serious home growers and small commercial operations running multiple plants or back-to-back flowering cycles who need a reliable, concentrated end-of-cycle bloom booster at scale. Use only at the very end of the plant’s life cycle as directed — General Hydroponics KoolBloom is a powerful finishing supplement, not a base nutrient, and is designed to work alongside any General Hydroponics® feed regimen.
2-45-28 NPK ratio — extreme phosphorus and potassium loading for abundant flowering and ripening
Contains precise amounts of ripening elements to accelerate the final phase of the grow cycle
Builds larger, heavier fruits and flowers for maximum yield and quality at harvest
For use only at the very end of the plant’s life cycle
16lb dry soluble concentrate — highly concentrated; high-volume size for multi-plant and commercial-scale finishing programs
Use General Hydroponics KoolBloom only during the final ripening phase of the flowering stage. Follow the General Hydroponics feeding schedule for precise mixing rates, application timing, and transition guidance.
16lb | 2-45-28 NPK | Dry Soluble | Bloom Booster | Made by General Hydroponics®