blossom end rot

Blossom End Rot: What it is and how to prevent it

Blossom End Rot: What it is and how to prevent it

Blossom-end rot is one of the most frustrating problems gardeners face when growing tomatoes. You check on a plant that looks healthy, only to find dark, sunken spots forming on the bottom of developing fruit. Many people assume it’s a disease or a pest, but blossom-end rot is neither. It’s a nutritional issue tied to how the plant takes up and uses calcium as the fruit grows.