Peters Professional Acid Special 21-7-7 (25 lb) works to produce healthy acid-loving crops. The Acid Special 21-7-7 contains a full range of essential micronutrients to promote greening, and has a high acidity profile that offsets high water alkalinity or lowers pH levels. The Acid Special 21-7-7 is an excellent choice for water types 3 and 4.
Application: fertilizer that offsets high water alkalinity or lowers pH levels.
Use on: ornamental horticulture.