Troubleshooting
Bulbous Corydalis problems — and how to fix them
Bulbous Corydalis (Corydalis bulbosa) 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.
Tuber rot
Sitting in wet or compacted soil over summer causes the tuber to rot; ensure the planting site has free drainage and avoid supplemental irrigation once foliage dies back.
Rabbit and squirrel damage
Tubers and emerging shoots are readily eaten by rabbits and grey squirrels; protect new plantings with wire netting or plant in areas with natural barriers until clumps are established enough to tolerate some predation.
Prevent bulbous corydalis problems before they start
Most bulbous corydalis issues are care-mismatch, not bad luck. Dial in the basics:
Bulbous Corydalis problems — FAQ
Why is my bulbous corydalis tuber rot?
Sitting in wet or compacted soil over summer causes the tuber to rot; ensure the planting site has free drainage and avoid supplemental irrigation once foliage dies back.
Why is my bulbous corydalis rabbit and squirrel damage?
Tubers and emerging shoots are readily eaten by rabbits and grey squirrels; protect new plantings with wire netting or plant in areas with natural barriers until clumps are established enough to tolerate some predation.