HiCal calcitic limestone is a natural mineral amendment used to adjust and stabilize the pH of soils and growing media. Maintaining pH within an optimal range improves nutrient availability and supports healthy, vigorous, and uniform plant growth. It also provides calcium, an essential element for strong plant development.

Key Benefits:

• Raises and stabilizes substrate pH;
• Enhances nutrient availability;
• Supplies calcium;
• Ideal for peat-based growing media;
• Suitable for a wide range of horticultural applications.