Troubleshooting
Billy buttons problems — and how to fix them
Billy buttons (Craspedia globosa) 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.
Crown and root rot
The most frequent failure, especially in UK winters. Standing moisture around the crown is fatal. Plant in raised beds or grit-amended soil; avoid overwatering and protect from winter wet with a cloche or cold frame.
Poor germination
Seeds require light for germination — do not cover. Surface-sow at 15–18°C and keep moist until germination (14–21 days). Pre-soaking seed for 24 hours improves germination rates.
Botrytis on flower heads
Papery globe heads can be affected by grey mould in wet seasons. Harvest for drying before full anthesis and hang upside-down in dry, well-ventilated conditions. Remove any affected heads promptly.
Prevent billy buttons problems before they start
Most billy buttons issues are care-mismatch, not bad luck. Dial in the basics:
Billy buttons problems — FAQ
Why is my billy buttons crown and root rot?
The most frequent failure, especially in UK winters. Standing moisture around the crown is fatal. Plant in raised beds or grit-amended soil; avoid overwatering and protect from winter wet with a cloche or cold frame.
Why is my billy buttons poor germination?
Seeds require light for germination — do not cover. Surface-sow at 15–18°C and keep moist until germination (14–21 days). Pre-soaking seed for 24 hours improves germination rates.
Why is my billy buttons botrytis on flower heads?
Papery globe heads can be affected by grey mould in wet seasons. Harvest for drying before full anthesis and hang upside-down in dry, well-ventilated conditions. Remove any affected heads promptly.