How and When to Use Calcium Nitrate

The quick answer

Calcium nitrate gets talked about a lot around tomatoes. It has a place when a soil test shows you actually need calcium, but most blossom-end rot comes from uneven watering, not an empty soil bank.

Before you add anything

• Water steadily first and see if the problem eases
• Consider a soil test rather than guessing
• Follow label rates — more is not better

Safety note: Follow all product label instructions and keep garden chemicals away from children and pets.

This article makes a technical claim and must be reviewed by a horticultural source before launch. Reviewed: TODO_CONTENT.