Troubleshooting
Roma Tomato problems — and how to fix them
Roma Tomato (Solanum lycopersicum 'Roma') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Blossom-end rot
Sunken dark patches on the fruit base from calcium uptake disrupted by uneven watering; keep moisture consistent and mulch rather than dosing calcium.
Early and late blight
Brown leaf spotting and fruit rot in warm, wet, crowded conditions; space plants, water at the base, and remove affected foliage promptly.
Fruit splitting
Cracks form when a dry spell is followed by heavy watering or rain; maintain even moisture, especially as fruit ripens.
Concentrated harvest then decline
As a determinate type it crops in a tight window then slows; succession-sow or grow indeterminate types alongside for a longer season.
Prevent roma tomato problems before they start
Most roma tomato issues are care-mismatch, not bad luck. Dial in the basics:
Looking for roma tomato in general rather than its problems? Read the full roma tomato care guide — light, water, soil and feeding.
Roma Tomato problems — FAQ
Why is my roma tomato blossom-end rot?
Sunken dark patches on the fruit base from calcium uptake disrupted by uneven watering; keep moisture consistent and mulch rather than dosing calcium.
Why is my roma tomato early and late blight?
Brown leaf spotting and fruit rot in warm, wet, crowded conditions; space plants, water at the base, and remove affected foliage promptly.
Why is my roma tomato fruit splitting?
Cracks form when a dry spell is followed by heavy watering or rain; maintain even moisture, especially as fruit ripens.
Why is my roma tomato concentrated harvest then decline?
As a determinate type it crops in a tight window then slows; succession-sow or grow indeterminate types alongside for a longer season.