BuildASoil Grow-Cal

Amino acid chelation allows the calcium to be absorbed by the plant much more efficiently than standard mineral forms. Because the calcium is bound to amino acids, the plant recognizes it as a nutrient it can easily transport, leading to faster uptake and less energy expenditure by the plant.

Yes, Grow-Cal is designed to be gentle enough for foliar application. Because it uses amino acid chelation rather than harsh synthetic chelators like EDTA, it is less likely to cause phytotoxicity when applied directly to leaves.

No, this formula is specifically designed to be safe for beneficial soil microbes. By avoiding EDTA—a synthetic chelator that can be harsh on soil biology—Grow-Cal supports a healthy rhizosphere rather than disrupting it.

It does both. While it provides a direct, bioavailable source of calcium, it also acts as a catalyst to help unlock calcium sources already present in your soil, making them more accessible to your plants over time.

The application method depends on your goal. Use it as a soil drench to address calcium deficiencies at the root zone and improve long-term soil health, or use it as a foliar spray for a rapid, targeted boost when you notice immediate signs of calcium stress.