Troubleshooting
Sulphur Clover problems — and how to fix them
Sulphur Clover (Trifolium ochroleucon) 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.
Crown rot in wet winters
The crown and roots are highly susceptible to rotting when soil stays waterlogged through cold, wet winters; plant on a raised bed or slope and add grit to heavy clay soils to ensure drainage.
Powdery mildew
White powdery patches may appear on foliage in warm, dry spells, especially when plants are drought-stressed; improve soil moisture retention and air circulation, and remove affected leaves.
Prevent sulphur clover problems before they start
Most sulphur clover issues are care-mismatch, not bad luck. Dial in the basics:
Sulphur Clover problems — FAQ
Why is my sulphur clover crown rot in wet winters?
The crown and roots are highly susceptible to rotting when soil stays waterlogged through cold, wet winters; plant on a raised bed or slope and add grit to heavy clay soils to ensure drainage.
Why is my sulphur clover powdery mildew?
White powdery patches may appear on foliage in warm, dry spells, especially when plants are drought-stressed; improve soil moisture retention and air circulation, and remove affected leaves.