Troubleshooting
Bell pepper problems — and how to fix them
Bell pepper (Capsicum annuum) 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.
Flowers drop
Temperature too low (<18°C) or too high (>32°C).
Blossom-end rot
Inconsistent watering, not calcium deficiency.
Sunscald on fruit
Pale patches from intense sun; leave some foliage for shade.
Aphids and whitefly
Common pests; treat with horticultural soap.
Slow to ripen red
Needs heat and time — plant earliest varieties in cool climates.
Prevent bell pepper problems before they start
Most bell pepper issues are care-mismatch, not bad luck. Dial in the basics:
Bell pepper problems — FAQ
Why is my bell pepper flowers drop?
Temperature too low (<18°C) or too high (>32°C).
Why is my bell pepper blossom-end rot?
Inconsistent watering, not calcium deficiency.
Why is my bell pepper sunscald on fruit?
Pale patches from intense sun; leave some foliage for shade.
Why is my bell pepper aphids and whitefly?
Common pests; treat with horticultural soap.
Why is my bell pepper slow to ripen red?
Needs heat and time — plant earliest varieties in cool climates.