Troubleshooting
Daffodil problems — and how to fix them
Daffodil (Narcissus pseudonarcissus) 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.
Narcissus bulb fly (Merodon equestris)
Larvae tunnel into bulbs and destroy them from within. Affected plants produce thin, grassy leaves with no flower. There is no effective chemical control for home gardeners; lift infested bulbs and destroy. Cover soil over bulbs with fine mesh immediately after foliage dies back to exclude egg-laying flies.
Basal rot (Fusarium oxysporum)
Causes soft, brown rot at the bulb base, often with pink-white fungal growth. Results from waterlogged soil or mechanical damage at lifting. Remove and destroy affected bulbs; improve drainage; avoid replanting in infected soil for several years.
Failure to naturalise in grass
N. pseudonarcissus naturalises in grass only if the sward is not cut until foliage has completely yellowed (at least 6 weeks after flowering). Cutting too early starves the bulb of energy for next year. Mow no earlier than late June in the UK.
Prevent daffodil problems before they start
Most daffodil issues are care-mismatch, not bad luck. Dial in the basics:
Looking for daffodil in general rather than its problems? Read the full daffodil care guide — light, water, soil and feeding.
Daffodil problems — FAQ
Why is my daffodil narcissus bulb fly (merodon equestris)?
Larvae tunnel into bulbs and destroy them from within. Affected plants produce thin, grassy leaves with no flower. There is no effective chemical control for home gardeners; lift infested bulbs and destroy. Cover soil over bulbs with fine mesh immediately after foliage dies back to exclude egg-laying flies.
Why is my daffodil basal rot (fusarium oxysporum)?
Causes soft, brown rot at the bulb base, often with pink-white fungal growth. Results from waterlogged soil or mechanical damage at lifting. Remove and destroy affected bulbs; improve drainage; avoid replanting in infected soil for several years.
Why is my daffodil failure to naturalise in grass?
N. pseudonarcissus naturalises in grass only if the sward is not cut until foliage has completely yellowed (at least 6 weeks after flowering). Cutting too early starves the bulb of energy for next year. Mow no earlier than late June in the UK.