Troubleshooting
Bokhara Iris problems — and how to fix them
Bokhara Iris (Iris bucharica) 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.
Bulb rot from summer moisture
The primary cause of failure in UK gardens; the fleshy storage roots are especially prone to rot in wet summers. Lift bulbs after foliage dies back, dry thoroughly, and store in dry sand, or protect in situ with a cloche.
Ink spot disease (Drechslera iridis)
Causes black spots on bulb scales and yellowing foliage early in the season. Remove and destroy infected bulbs; avoid replanting Iris in the same spot for several years.
Prevent bokhara iris problems before they start
Most bokhara iris issues are care-mismatch, not bad luck. Dial in the basics:
Bokhara Iris problems — FAQ
Why is my bokhara iris bulb rot from summer moisture?
The primary cause of failure in UK gardens; the fleshy storage roots are especially prone to rot in wet summers. Lift bulbs after foliage dies back, dry thoroughly, and store in dry sand, or protect in situ with a cloche.
Why is my bokhara iris ink spot disease (drechslera iridis)?
Causes black spots on bulb scales and yellowing foliage early in the season. Remove and destroy infected bulbs; avoid replanting Iris in the same spot for several years.