Jacks 5-50-18 UltraViolet 25Lb — Single Unit

Jack's® Nutrients FeED 5-50-18 UltraViolet Fertilizer is an extremely high-phosphorus formula designed to help transition plants from vigorous vegetative growth into the reproductive and flowering stage. Readily available phosphorus supports bud initiation, root activity, and flower development, while elevated potassium contributes to plant strength and crop quality. This specialized formula is intended for targeted use when growers need to reduce vegetative momentum and encourage a strong flowering response.