When you wonder does lungwort come back every year, the answer is a firm yes in the right spot. This is one of the most reliable shade perennials you can plant in a temperate garden. The same clump returns each spring for many decades with basic care.
I watch my own lungwort returns yearly like clockwork in early March. The shoots push up through any leftover snow before the crocuses even start to fade. The pink and blue blooms open within two weeks of the first warm day each season.
Plants like lungwort use a trick called dormancy to skip the cold months. Leaves either brown out or hang on in a battered state. The active growth pauses for the deep winter weeks. All the plant's energy drops down to the crown under the soil where it sits safe.
The crown is the part of the plant where roots meet the base of the stems. This tough mass of tissue holds buds for next year's growth. New shoots push up from these buds the moment soil temps climb above 40°F (4°C) in spring.
Pulmonaria regrowth patterns shift based on your local climate zone. In cold zones 3 through 6, leaves die back fully each winter. In milder zones 7 and 8, the foliage stays semi-evergreen and just looks worn by March. Either way, new spring growth comes from the same crown.
NCSU and Clemson Extension both rate lungwort hardy across USDA zones 3 through 9. That covers most of North America. The plant takes winter lows down to negative 30°F (-34°C) with a good mulch layer on top of the crown.
Bloom time falls in late winter through early spring in most gardens. Some heirloom types open buds by mid-February in warm spots. Most plants peak between mid-March and late April with a strong show that lasts three to four weeks. The display ends just as hostas start to push up nearby.
When I first grew lungwort in zone 5, I worried it might skip a season after a brutal cold snap. In my experience, it has never missed a year even after negative 25°F (-32°C) lows. The crown sits deep enough to dodge the worst cold.
This lungwort hardy perennial stays tough in part thanks to good care during the cold months. Pile 2 inches (5 cm) of mulch around the crown each fall. Use shredded leaves or pine bark for the job. The cover keeps soil temps steady and shields the crown from harsh freeze-thaw cycles.
Soggy soil is the one thing that kills lungwort over winter. Wet feet rot the crown fast when temps hover near freezing. Pick a spot with good drainage from the start. Add a handful of grit to clay beds before planting to keep water moving through the soil.
Mark your dormant clumps with a small label or stake in cold zones where leaves vanish by November. This step stops you from digging into the crown by mistake during spring bed work. A simple painted stick or plastic plant tag works fine for the job.
Your annual lungwort bloom display will gain strength each year as the clump grows wider. Year one gives you a small show with five to seven flower stalks. By year three, expect 20 to 30 stems of bloom in a healthy clump. Year five and beyond brings full glory.
Plant lungwort and you can count on its return through nearly any weather. Few perennials show up so on time and so often, year after year, with such tiny effort from you.
If you ever spot a slow start in spring, hold off on digging or panic moves. The plant may just need warmer soil to wake up. Give it three full weeks past your last frost date before you check the crown for any real trouble.
Read the full article: Pulmonaria Plant: Complete Grower's Guide
