Troubleshooting
Dahlia 'Boom Boom White' problems — and how to fix them
Dahlia 'Boom Boom White' (Dahlia 'Boom Boom White') 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.
Slug and snail damage to shoots
Young emerging shoots are heavily grazed by slugs and snails. Use barriers or traps around new growth, especially in wet spring conditions.
Earwigs spoiling white petals
Earwig damage is especially visible on white blooms. Trap them in upturned, straw-filled pots on canes and remove daily.
Tuber rot over winter
Stored tubers rot if kept damp or are caught by frost. Lift after first frost, dry off, and store cool and barely moist in cold zones.
Botrytis marking white blooms
Grey mould disfigures pale flowers in wet weather. Deadhead promptly, improve airflow, and avoid wetting the blooms when watering.
Prevent dahlia 'boom boom white' problems before they start
Most dahlia 'boom boom white' issues are care-mismatch, not bad luck. Dial in the basics:
Looking for the species overview? Dahlia — the full care guide.
Dahlia 'Boom Boom White' problems — FAQ
Why is my dahlia 'boom boom white' slug and snail damage to shoots?
Young emerging shoots are heavily grazed by slugs and snails. Use barriers or traps around new growth, especially in wet spring conditions.
Why is my dahlia 'boom boom white' earwigs spoiling white petals?
Earwig damage is especially visible on white blooms. Trap them in upturned, straw-filled pots on canes and remove daily.
Why is my dahlia 'boom boom white' tuber rot over winter?
Stored tubers rot if kept damp or are caught by frost. Lift after first frost, dry off, and store cool and barely moist in cold zones.
Why is my dahlia 'boom boom white' botrytis marking white blooms?
Grey mould disfigures pale flowers in wet weather. Deadhead promptly, improve airflow, and avoid wetting the blooms when watering.