General Hydroponics Liquid KoolBloom Nutrients

Start Liquid KoolBloom when plants transition into flowering—typically when you flip to 12/12 lighting or see the first signs of flower formation in photoperiod crops. Continue throughout the flowering phase (weeks 1-6 or longer depending on strain) to support continuous flower development and bulking. Switch to KoolBloom Dry only in the final 1-2 weeks for explosive finishing and ripening.

Liquid KoolBloom (0-10-10) is used throughout flowering to build flower mass and support bloom development. The General Hydroponics Dry KoolBloom Nutrients (2-45-28) is an extreme finisher used only in the final 1-2 weeks to trigger ripening and maximize essential oils. The products work sequentially: Liquid KoolBloom builds the flowers, then KoolBloom Dry finishes them. Think of Liquid as the builder and Dry as the ripener.

Yes, Liquid KoolBloom is designed for continuous use throughout flowering. Unlike KoolBloom Dry which triggers premature ripening if used too early, Liquid KoolBloom's balanced 10-10 P-K ratio supports ongoing flower development without forcing senescence. Many growers use it from flower initiation through late bloom, only switching to KoolBloom Dry for the final finishing push before harvest.

Typical application rates are 1/2 to 1 teaspoon per gallon (approximately 2.5-5 ml per gallon) during early to mid-flowering, potentially increasing slightly during peak bloom. Start at lower rates and increase based on plant response. Check the feed charts for specific recommendations based on your nutrient program and growth stage. The concentrated formula means small amounts deliver significant P-K supplementation.

Yes, Liquid KoolBloom is designed to supplement any base nutrient program. The 0-10-10 NPK provides additional phosphorus and potassium without altering nitrogen levels, allowing you to control N through your base nutrients while boosting P-K for flowering. It's compatible with the FloraSeries system—specifically General Hydroponics FloraGro Nutrients, FloraBloom, and FloraMicro—as well as General Hydroponics FloraNova Bloom Nutrients and most other fertilizer brands.

Phosphorus drives energy transfer that powers terpene synthesis, while potassium activates enzymes for essential oil production. To further push the metabolic boundaries of your plants, combining Liquid KoolBloom with General Hydroponics Floralicious Plus Nutrients can provide additional bio-stimulants for maximum terpene synthesis and final quality.

Follow the feed charts which account for Liquid KoolBloom's P-K contribution. Monitor your total EC/PPM—if it climbs too high, reduce base nutrient strength by 10-25%. If you encounter calcium or magnesium issues during this heavy feeding period, General Hydroponics CALiMAGic Nutrients is an excellent additive to prevent common deficiencies.

Liquid KoolBloom is a synthetic mineral salt fertilizer and is not certified organic. However, it's compatible with organic base nutrients if you're running a hybrid program where you accept some synthetic inputs for bloom enhancement. For strictly certified organic production, you'll need organic-approved bloom boosters instead. Many growers use organic nutrients for vegetative growth but accept synthetic bloom boosters like Liquid KoolBloom for the superior flowering performance.