Troubleshooting
Trevi Fountain Pulmonaria problems — and how to fix them
Trevi Fountain Pulmonaria (Pulmonaria 'Trevi Fountain') 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
Frequent in dry shade after bloom. Keep soil moist, shear tired leaves to regrow clean foliage, and improve airflow around clumps.
Wilting and scorch
Dry roots or too much sun cause flagging and burnt leaf edges. Water, mulch, and move to deeper, cooler shade if recurring.
Worn foliage post-flowering
Leaves often look ragged once flowers fade. Cut the whole plant back to encourage a fresh, well-marked flush.
Slug and snail grazing
Tender spring growth is at risk in damp shade. Protect emerging crowns with barriers or wildlife-friendly controls.
Prevent trevi fountain pulmonaria problems before they start
Most trevi fountain pulmonaria issues are care-mismatch, not bad luck. Dial in the basics:
Looking for trevi fountain pulmonaria in general rather than its problems? Read the full trevi fountain pulmonaria care guide — light, water, soil and feeding.
Trevi Fountain Pulmonaria problems — FAQ
Why is my trevi fountain pulmonaria powdery mildew?
Frequent in dry shade after bloom. Keep soil moist, shear tired leaves to regrow clean foliage, and improve airflow around clumps.
Why is my trevi fountain pulmonaria wilting and scorch?
Dry roots or too much sun cause flagging and burnt leaf edges. Water, mulch, and move to deeper, cooler shade if recurring.
Why is my trevi fountain pulmonaria worn foliage post-flowering?
Leaves often look ragged once flowers fade. Cut the whole plant back to encourage a fresh, well-marked flush.
Why is my trevi fountain pulmonaria slug and snail grazing?
Tender spring growth is at risk in damp shade. Protect emerging crowns with barriers or wildlife-friendly controls.