Fertilizing Plum Trees: Calcium Nitrate Alternatives

March: 1 cup 10-10-10 per year of tree age (max 10 cups).
August: 1 cup 10-10-10 per year of tree age (max 4 cups).

Calcium nitrate is recommended for plums because it doesn't acidify soil. Hard to find locally; available online. Practical alternative:

This split application supports growth and fruit development without specialized products.

About Gardening: Japanese Plum Tree Root Rot Collapse: Fungal Failure and Neighbor Tree Risk; Victoria Plum Maggots: Plum Moth, Preventive Spraying Required; Plum Tree Pruning for Fruit Production; Valuing a Lost Purple Plum Tree for Insurance Claims; Diagnosing Two Problem Trees: Borer and Canker; Plum Tree Borer Recovery: Merit Spray, Fertilization, and Insecticide Sources; Borers in Japanese Plum Trees: Identification and Control; Best Indoor Trees for a Warm Greenhouse in New York; Winter Tree Fertilizing: Why It's Actually a Good Idea; Fertilizing Young Trees: When and How to Apply for Optimal Growth

Garden Articles

Plants