Troubleshooting
Common Witch Hazel 'Arnold Promise' problems — and how to fix them
Common Witch Hazel 'Arnold Promise' (Hamamelis × intermedia 'Arnold Promise') 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.
Suckering from the rootstock
Grafted plants throw up vigorous suckers, often a different, plainer witch hazel. Cut these off at the base promptly so they do not overtake the chosen cultivar.
Sparse flowering or chlorosis on chalk
Shallow alkaline soils cause yellowing and weak bloom. Improve soil with organic matter and acidify, or grow in a raised bed of suitable soil.
Drought stress
Leaves scorch and curl in dry summers, weakening next year's flowering. Mulch well and water through prolonged dry spells, especially while establishing.
Slow establishment
Witch hazels resent root disturbance and settle in slowly. Plant in autumn or spring, water consistently and be patient for the first few seasons.
Prevent common witch hazel 'arnold promise' problems before they start
Most common witch hazel 'arnold promise' issues are care-mismatch, not bad luck. Dial in the basics:
- What's wrong with my plant? — the diagnosis apps compared
- Common Witch Hazel 'Arnold Promise' watering schedule
- Common Witch Hazel 'Arnold Promise' light requirements
- Best soil mix for common witch hazel 'arnold promise'
- Common Witch Hazel 'Arnold Promise' temperature & humidity
- Full common witch hazel 'arnold promise' care guide
Looking for common witch hazel 'arnold promise' in general rather than its problems? Read the full common witch hazel 'arnold promise' care guide — light, water, soil and feeding.
Common Witch Hazel 'Arnold Promise' problems — FAQ
Why is my common witch hazel 'arnold promise' suckering from the rootstock?
Grafted plants throw up vigorous suckers, often a different, plainer witch hazel. Cut these off at the base promptly so they do not overtake the chosen cultivar.
Why is my common witch hazel 'arnold promise' sparse flowering or chlorosis on chalk?
Shallow alkaline soils cause yellowing and weak bloom. Improve soil with organic matter and acidify, or grow in a raised bed of suitable soil.
Why is my common witch hazel 'arnold promise' drought stress?
Leaves scorch and curl in dry summers, weakening next year's flowering. Mulch well and water through prolonged dry spells, especially while establishing.
Why is my common witch hazel 'arnold promise' slow establishment?
Witch hazels resent root disturbance and settle in slowly. Plant in autumn or spring, water consistently and be patient for the first few seasons.