The best place to plant Pulmonaria is a north or east-facing bed with soft morning light and cool shade after that. Pick ground that stays damp but drains well, with rich humus and a steady cover of leaf mulch on top.
I once moved a sad clump from a sunny spot to a shady corner under a birch tree. In my experience, the change was huge. Within two growing seasons the leaves grew bigger, the silver spots came back, and the spring flowers doubled in count for me.
Your best pulmonaria location comes down to one key fact about the plant. Lungwort is a woodland edge native, so it craves 2 to 4 hours of gentle morning sun and cool roots through the day.
Soil type plays a big role too, since this plant fades fast in dry ground. Target a pH between 6.0 and 8.0 for your bed. Water deep down to 10 to 12 inches (25 to 30 cm) during dry spells. NCSU Extension lists lungwort as hardy in USDA zones 3a-8b, so most gardens can host it well.
A great lungwort planting site sits under trees like oaks, maples, or dogwoods. Bare winter branches let weak spring sun reach the buds. Summer leaves then block harsh rays that scorch silver foliage in July heat.
Skip soggy low spots where water pools after rain, since wet crowns rot fast in winter cold. Stay clear of bright south walls and paved patios too. The bounced heat will crisp your leaves by July and stress the whole clump fast.
When picking where to grow pulmonaria, pair it with friends that share its taste for cool shade. Hellebores, hostas, and ferns make perfect bed mates. They cover the gap when your lungwort blooms fade by late spring each year.
This shade perennial location works best with 18 inches (45 cm) between plants. Give clumps room to fill in over three years. Top your bed with 2 inches (5 cm) of shredded leaf mulch each fall to lock in soil moisture.
Get your spot right and lungwort will reward you with decades of carefree blooms and bright spotted leaves. The wrong site turns this tough plant into a sad mess of crispy brown foliage by midsummer, so choose with care from the start.
Test your chosen spot before you plant by checking how the light moves across the bed each day. Watch for sun patterns in both spring and summer. Many spots that look shady in May get blasted with sun by July when the angle shifts.
Slope and drainage matter just as much as light for healthy clumps. A slight grade lets winter rain drain away from the crown. Add a handful of grit to heavy clay soil before planting to keep roots from drowning during wet months.
Read the full article: Pulmonaria Plant: Complete Grower's Guide
