Troubleshooting
Sissinghurst White Pulmonaria problems — and how to fix them
Sissinghurst White Pulmonaria (Pulmonaria officinalis 'Sissinghurst 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.
Powdery mildew
Common in dry shade, especially after flowering, coating leaves white. Keep soil moist, shear back tired foliage to regrow, and improve airflow.
Wilting and leaf scorch
Dry soil or too much sun causes flagging and burnt edges. Water, mulch, and move to cooler, deeper shade if recurring.
Ragged foliage after bloom
Leaves often look worn once flowers fade. Cut the clump right back to force a clean new flush.
Slug and snail grazing
Tender spring growth is vulnerable in damp shade. Protect emerging crowns with barriers or wildlife-friendly controls.
Prevent sissinghurst white pulmonaria problems before they start
Most sissinghurst white pulmonaria issues are care-mismatch, not bad luck. Dial in the basics:
- Common lungwort problems — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Sissinghurst White Pulmonaria watering schedule
- Sissinghurst White Pulmonaria light requirements
- Best soil mix for sissinghurst white pulmonaria
- Sissinghurst White Pulmonaria temperature & humidity
- Full sissinghurst white pulmonaria care guide
Looking for sissinghurst white pulmonaria in general rather than its problems? Read the full sissinghurst white pulmonaria care guide — light, water, soil and feeding.
Sissinghurst White Pulmonaria problems — FAQ
Why is my sissinghurst white pulmonaria powdery mildew?
Common in dry shade, especially after flowering, coating leaves white. Keep soil moist, shear back tired foliage to regrow, and improve airflow.
Why is my sissinghurst white pulmonaria wilting and leaf scorch?
Dry soil or too much sun causes flagging and burnt edges. Water, mulch, and move to cooler, deeper shade if recurring.
Why is my sissinghurst white pulmonaria ragged foliage after bloom?
Leaves often look worn once flowers fade. Cut the clump right back to force a clean new flush.
Why is my sissinghurst white pulmonaria slug and snail grazing?
Tender spring growth is vulnerable in damp shade. Protect emerging crowns with barriers or wildlife-friendly controls.