Tomato Cold Damage: Identification and Recovery

If your potted tomato plants have leaves that look washed out or bleached after several cold nights, the diagnosis is almost certainly cold damage. Tomatoes are extremely sensitive to freezing temperatures.

If the plant still has healthy green leaves, simply snip off the damaged foliage. The plant will usually recover. However, if all leaves are light-colored and damaged, it is best to discard the plant and start fresh.

For future container growing, use a large pot—at least 24 inches wide—to provide ample root space and moisture retention. This helps buffer the roots against temperature swings and supports a more productive plant.