Troubleshooting
Large Bitter-cress problems — and how to fix them
Large Bitter-cress (Cardamine amara) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Flea beetles
Small holes in leaves are the tell-tale sign; flea beetles are common on Brassicaceae in dry spells — maintain moisture and use fine insect-proof mesh over ornamental plantings.
Root rot in standing water
Paradoxically, although it is a moisture-lover, prolonged stagnant flooding can rot the crown; flowing or frequently refreshed water is preferred over static boggy conditions.
Prevent large bitter-cress problems before they start
Most large bitter-cress issues are care-mismatch, not bad luck. Dial in the basics:
Large Bitter-cress problems — FAQ
Why is my large bitter-cress flea beetles?
Small holes in leaves are the tell-tale sign; flea beetles are common on Brassicaceae in dry spells — maintain moisture and use fine insect-proof mesh over ornamental plantings.
Why is my large bitter-cress root rot in standing water?
Paradoxically, although it is a moisture-lover, prolonged stagnant flooding can rot the crown; flowing or frequently refreshed water is preferred over static boggy conditions.