The Q&A Archives: Tomato Leaves Curling

Question: What causes leaf curl on tomatoes? I have some in pots and some in the ground, and both have leaves that are curled.

Answer: The shapes of tomato leaves vary depending upon variety. Some leaves are smooth and look like the leaves on potato plants and others are wrinkled and more 'tomatoey' looking. The weather can also have an affect on how leaves look. Unless the leaves are distorted, thick, or curl upward, I wouldn't be too concerned about their appearance. If the plants look unhealthy, get blotches, or the leaves begin to yellow, your plants are probably just fine.

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