Further issues with potassium deficiency include yellow shoulders on the tomato itself, a condition that prevents the fruit from ripening. Feed plants regularly with a balanced, complete ...

When you're growing your tomato plants during the summer, you might notice some with curling leaves. Here's why that happens and how to stop it.

Potassium deficiency occurs frequently in plants grown on sandy soils resulting in a number of symptoms including browning of leaves, curling of leaf tips and yellowing (chlorosis) of leaves ...