Grow More Mendocino Producer's Choice Crystallizer 05-10-40 - Water-Soluble Powder - 25 lb

High-Potassium Water-Soluble Finishing Feed - 25 lb Unit

Late-stage feeding needs a potassium-heavy nutrient that dissolves cleanly and does not clog lines. This 05-10-40 powder dissolves fully in water and pairs high potassium with added calcium, magnesium, chelated iron, carbohydrates and amino acids. The guaranteed analysis lists 5.00% total nitrogen, 10.0% available phosphate and 40.0% soluble potash.

The 25 lb size suits growers who feed regularly through flowering, from serious indoor gardeners to commercial operations that want a bulk supply of one powder.

Key Features & Benefits

• 100% water-soluble powder — mixes into nutrient solutions for hydroponic and soil feeding.
• 40.0% soluble potash — a potassium-forward analysis for the flowering stage.
• Added calcium and magnesium — supplements secondary nutrients alongside your base feed.
• DTPA/EDDHA iron — chelated iron forms for dependable availability.
• No artificial dyes or colorings — a clean powder.

Who Should Use Grow More Mendocino Producer's Choice Crystallizer

Growers who want a flowering-stage potassium feed that fits an existing schedule, and operations that prefer buying powder in bulk.

About Grow More Mendocino Producer's Choice Crystallizer

Grow More makes the Mendocino Producer's Choice line of water-soluble powdered fertilizers. Crystallizer is labeled 05-10-40 and can be used as a standalone base nutrient or as a vegetative and bloom stimulant.

Frequently Asked Questions

Q: What does 05-10-40 mean?
A: The three numbers are total nitrogen, available phosphate and soluble potash by weight. This product contains 5.00% nitrogen, 10.0% phosphate and 40.0% potash.

Q: Is it suitable for hydroponic systems?
A: It is a 100% water-soluble powder, so it dissolves in nutrient solutions. Follow the label for mixing rates and check your solution's pH and EC after mixing.

Q: Can I use it with my existing feeding schedule?
A: Yes, the manufacturer describes it as able to fit into an existing schedule. It can also serve as a standalone base nutrient.

Q: Does it contain artificial dyes?
A: No. It is free from artificial dyes or colorings.

Q: What is chelated iron?
A: A chelate wraps the iron so it stays available to plants in solution. This product uses DTPA and EDDHA iron forms.