I was rearranging my garden two weeks ago. It was a cloudy overcast day and my pulmonaria plant was looking draggy and leggy after flowering. Like very dusty. So I took online advice and have trimmed back all the flowering stems. It looked really good after the trim and even looked okay during the transatlantic. But it’s looking rather sickly …
Did I kill it by over trimming or moving the plant ! Should I try to shave off leaves in hopes the energy will revert back to becoming healthy again ? The one next to it seems fine.and they were both transplanted on the same day.
Thank you for contacting the Toronto Master Gardeners with your question on Ms. Moon.
It is interesting to note that the same plant right next to the sickly one is doing fine. I have to surmise that either the plant was moved based on your comment. This being the case, the plant looks like it is transplant shock, or has some root damage. If as you stated it had some dusty looking leaves and removed them, that was most likely powdery mildew; but the remaining leaves should not be affected in this way.
Perhaps water in some root booster product to help promote root regeneration, and also keep moist and shelter from hot direct sun.
For best results please follow growing conditions;
Best grown in cool, humusy, organically rich, evenly moist but well-drained soils in part shade to full shade. Soils must not be allowed to dry out. Avoid locations in full sun where leaves will often scorch or wilt. Intolerant of wet, poorly-drained soils. Spreads very slowly by creeping roots, but is not invasive. Divide plants in fall if they become overcrowded. Plant leaves may retain some color (semi-evergreen) in warm winter climates.
Best of luck with you plant.