Jack's Nutrients FeED 5-50-18 UltraViolet Fertilizer - 2.2 lb

High-Phosphorus Flowering Transition Feed - 2.2 lb

Moving plants out of vigorous vegetative growth and into flowering takes a change in nutrition. This fertilizer uses a 5-50-18 analysis with a very high phosphorus share to support that switch, and elevated potassium to support plant strength and crop quality. It is a highly water-soluble solid, so it suits liquid feed programs.

The 2.2 lb unit suits growers who want a targeted flowering-stage feed without committing to a larger quantity. It works for home gardeners running a single room and for commercial growers trialling the formula before scaling up.

Key Features & Benefits

• 5-50-18 analysis — concentrates phosphorus and potassium for the flowering stage.
• Highly water soluble — dissolves for use in liquid feed programs.
• Chelated micronutrients — includes chelated iron, manganese, copper and zinc.
• Magnesium and sulfur included — supplies secondary nutrients alongside the main formula.

Who Should Use Jack's Nutrients FeED UltraViolet 5-50-18

Growers of greenhouse and controlled environment crops who need to reduce vegetative momentum and encourage a strong flowering response. It is a specialized formula meant for targeted use, not an all-stage feed.

About Jack's Nutrients FeED UltraViolet 5-50-18

Jack's Nutrients FeED UltraViolet is a specialized fertilizer sold as light blue crystals. It carries a 5-50-18 analysis, contains 1.0% magnesium and 1.5% sulfur, and has a solubility limit of 2.5 lb per gallon. The product ships at 2.2 lb.

Frequently Asked Questions

Q: What does 5-50-18 mean?
A: The numbers show the fertilizer analysis for nitrogen, phosphate and potash. This formula holds 5.0% total nitrogen, with much more phosphate and a moderate share of potash.

Q: When should I use it?
A: Use it when you want plants to move from vegetative growth into flowering. It is designed for targeted use at that transition.

Q: Is it a complete feed on its own?
A: It is a specialized formula, so it is intended for targeted use. It does include magnesium, sulfur and chelated micronutrients.

Q: How soluble is it?
A: It is highly soluble in water. Its stated limit of solubility is 2.5 lb per gallon.

Q: Is it classified as a dangerous good for shipping?
A: Its documentation states it is not classified as a dangerous good under transport regulations, and its signal word is none.

Q: Does this fertilizer change acidity?
A: Yes, it is potentially acidic. Its potential acidity is 554 lb of calcium carbonate equivalent per ton.