From the manufacturer

General Hydroponics Liquid KoolBloom

Liquid KoolBloom bolsters your efforts with essential nutrients your flowering plants need for vigorous growth, bigger blooms and increased flowering sites. For use between the vegetative and flowering phases, Liquid KoolBloom enriches plants with key components that increase nutrient uptake from roots to buds. With that level of nutrition, more of your buds will get what they need to reach the flowering or fruiting state, and develop into larger blooms or fruits.

Liquid KoolBloom is used early to build up flower production, while a companion product, Dry KoolBloom, focuses on the later stages of ripening.

General Hydroponics® Liquid KoolBloom® 0-10-10 is a concentrated nutrient additive that promotes intense flowering and helps facilitate bulking in annual plants. A very small amount of Liquid KoolBloom® provides a significant amount of phosphorus and potassium that is essential for flowering plants. Liquid KoolBloom® will enhance the production of essential oils and fragrance in many flowers, culinary, and medicinal herbs. Use throughout most of the flowering stage of plant growth. General Hydroponics® makes a multitude of products that will provide anything your plants crave.