Lungwort
Pulmonaria
An ornamental plant, planted March to November.
In September: lift and divide the lungwort. It can be planted now.
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Lungwort, month by month
Bar: the usual months. Sprout: this month.
| Sowing, planting or job | Sep | Oct | Nov | Dec | 2027Jan | Feb | Mar | Apr | May | Jun | Jul | Aug |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Plant a pot-grown lungwort. | usual | usual | usual | none | none | none | usual | usual | usual | usual | usual | usual |
| Mulch the lungwort. | none | none | none | none | none | usual | none | none | none | none | none | none |
| Cut the lungwort back hard after flowering. | none | none | none | none | none | none | none | none | none | usual | usual | none |
| Lift and divide the lungwort. | usual | usual | usual | none | none | none | none | none | none | none | none | none |
What to do, and when
The usual months for a UK garden. Your own plan gives the week.
Planting
Plant a pot-grown lungwort March to November, 30 to 45cm apart. Moderate source: Gardeners’ World.
Mulch the lungwort
Use well-rotted leaf mould or compost. From Gardeners’ World.
Usually February. Weaker source: DutchGrown (outside the UK).
Cut the lungwort back hard after flowering
Gardeners call this the Hampton hack.
Almost to the ground, straight after its first flowers. Fresh leaves follow, and often a second flush of flowers.
Usually June to July. Moderate source: RHS.
Lift and divide the lungwort
Every 4 to 5 years, not every year.
Usually September to November. Moderate source: Gardeners’ World.
What the source words mean
Moderate: another trusted UK source, or the RHS on its group.Weaker: a blog, a forum, a small website or a page from outside the UK. Treat it as a guide.Outside the UK: its months may differ in a UK garden.
Every line above names the page it comes from. Where we found no good source for a job, we left it out. Where the name “Lungwort” comes from.