Troubleshooting
Arugula / rocket problems — and how to fix them
Arugula / rocket (Eruca sativa) 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.
Bolting and bitter leaves
Heat above 24°C; succession-sow every 2-3 weeks for cooler weather.
Flea beetles
Pinprick holes; use row cover or sow in cool weather.
Aphids on flower stalks
Tolerable or rinse off.
Quick loss to seed
Pick young; leaves over 10 cm get strong.
Yellow leaves
Nitrogen deficiency or hot soil.
Prevent arugula / rocket problems before they start
Most arugula / rocket issues are care-mismatch, not bad luck. Dial in the basics:
Arugula / rocket problems — FAQ
Why is my arugula / rocket bolting and bitter leaves?
Heat above 24°C; succession-sow every 2-3 weeks for cooler weather.
Why is my arugula / rocket flea beetles?
Pinprick holes; use row cover or sow in cool weather.
Why is my arugula / rocket aphids on flower stalks?
Tolerable or rinse off.
Why is my arugula / rocket quick loss to seed?
Pick young; leaves over 10 cm get strong.
Why is my arugula / rocket yellow leaves?
Nitrogen deficiency or hot soil.