Troubleshooting
Haworth's Lampranthus problems — and how to fix them
Haworth's Lampranthus (Lampranthus haworthii) 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.
Root and crown rot
Most commonly triggered by poorly draining soil or overwatering during summer dormancy. Remove affected roots, dust with sulphur fungicide, and repot or replant in well-draining gritty compost with improved drainage.
Frost kill
Not reliably frost-hardy. Temperatures consistently below 0°C damage or kill the plant. In the UK, grow in a container that can be brought indoors before first frost, or take cuttings each summer as insurance.
Woody, unproductive growth
Older plants become woody at the base and produce fewer flowers. Cut back by one-third after flowering in spring to stimulate new vegetative growth. Take cuttings from vigorous young shoots to rejuvenate the planting.
Prevent haworth's lampranthus problems before they start
Most haworth's lampranthus issues are care-mismatch, not bad luck. Dial in the basics:
Haworth's Lampranthus problems — FAQ
Why is my haworth's lampranthus root and crown rot?
Most commonly triggered by poorly draining soil or overwatering during summer dormancy. Remove affected roots, dust with sulphur fungicide, and repot or replant in well-draining gritty compost with improved drainage.
Why is my haworth's lampranthus frost kill?
Not reliably frost-hardy. Temperatures consistently below 0°C damage or kill the plant. In the UK, grow in a container that can be brought indoors before first frost, or take cuttings each summer as insurance.
Why is my haworth's lampranthus woody, unproductive growth?
Older plants become woody at the base and produce fewer flowers. Cut back by one-third after flowering in spring to stimulate new vegetative growth. Take cuttings from vigorous young shoots to rejuvenate the planting.