Troubleshooting
'Shishito' Pepper problems — and how to fix them
'Shishito' Pepper (Capsicum annuum 'Shishito') 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.
Flower drop
Cold below 15°C, heat above 32°C, or inconsistent watering aborts flowers. Maintain warmth and even moisture during the flowering window.
Aphids and whitefly
Common under cover, sucking sap and excreting sticky honeydew. Use insecticidal soap, encourage predators, and improve ventilation.
Pods left too long
Shishito is best harvested green and small; pods left on turn red, tougher and pithier, and the plant slows new fruit set. Pick regularly.
Occasional hot pods
About one in ten pods is unexpectedly spicy, more so in hot, dry, stressed conditions. Keep plants well watered to minimise the proportion of fiery pods.
Prevent 'shishito' pepper problems before they start
Most 'shishito' pepper issues are care-mismatch, not bad luck. Dial in the basics:
Looking for 'shishito' pepper in general rather than its problems? Read the full 'shishito' pepper care guide — light, water, soil and feeding.
'Shishito' Pepper problems — FAQ
Why is my 'shishito' pepper flower drop?
Cold below 15°C, heat above 32°C, or inconsistent watering aborts flowers. Maintain warmth and even moisture during the flowering window.
Why is my 'shishito' pepper aphids and whitefly?
Common under cover, sucking sap and excreting sticky honeydew. Use insecticidal soap, encourage predators, and improve ventilation.
Why is my 'shishito' pepper pods left too long?
Shishito is best harvested green and small; pods left on turn red, tougher and pithier, and the plant slows new fruit set. Pick regularly.
Why is my 'shishito' pepper occasional hot pods?
About one in ten pods is unexpectedly spicy, more so in hot, dry, stressed conditions. Keep plants well watered to minimise the proportion of fiery pods.