I have done this in the past, but have forgotten when I divided them. I'm in the Pacific NW and my lungwort is almost done blooming (the bloom stalks are mostly all in a leggy horizontal plane rather than upright). As I recall, these plants kind of disappear by late summer. I would like to divide and move them now if it would not compromise the plant - I can see where some early blank spots are that need filling, and the majority of the garden is just waking up. Is now the right time? Or...? Thanks in advance.

I've divided them in the spring with luck... but it may have been "dumb luck"!

They pretty much can be divided any time, but preferably just after blooming or in the fall. Sounds like now would be a good time for you.

That's what I was thinking as well. I think I'll dig some up, cut back the foliage and flowers, and pop them in where I have some holes to fill. I especially like them at the base of later emerging shrubs, as the lungwort tends to get pretty scrappy by mid-summer.

Yes they do like to be cut back after blooming, they'll put out some fresh new foliage then.
I love Pulmonaria, they are a great tuck in plant.
Happy gardening, I'm still waiting for spring.

Most normally I divide my lungwort in the spring , The leaves are smaller and more easily handled , they tend to have brittle bases.



My lungwort is just now blooming
I noticed it is closer to the ground this year . Maybe because it is early

I do love the tiny blooms. Too bad they don't last very long, but the foliage is nice tucked in with the hostas!