Calcium, an essential part of the plant’s cell wall structure, improves the absorption of other nutrients by the roots and their translocation within the plant, and contributes to improved disease resistance.
- Calcium deficiency symptoms appear initially as generally stunted plant growth. Cupping of mature leaves is a tell tale sign of a calcium defiency.
- Classic symptoms of a calcium deficiency include blossom-end rot of tomato (death of the end part of the fruits), tip burn of lettuce, blackheart of celery and death of the growing regions in many plants.
- Deficiencies typically occur with the middle or lower leaves. The most common symptoms are interveinal chlorosis or yellowing leaf veins, which stay green, giving a marbles appearance.
- Calcium and magnesium are found in most plant nutrients. They are also available combined into one bottle as a supplement.