Companion plants for Lungwort
Lungwort blooms from March through May. It wants part shade and moderate water. The 8 companion pairings below each state why the pairing works.
Taking over as Lungwort finishes

Rosebay Rhododendron
Shares part shade and moderate water; blooms in early summer as this one finishes; both are strong pollinator plants, and they feed in different months; evergreen, so the bed keeps its shape through winter.

American Wintergreen
Shares part shade and moderate water; blooms in early summer as this one finishes; both are strong pollinator plants, and they feed in different months; evergreen, so the bed keeps its shape through winter.

Mountain Laurel
Shares part shade and moderate water; overlaps, then carries the display into early summer; both are strong pollinator plants; evergreen, so the bed keeps its shape through winter.

Northern Sea Oats
Shares part shade and moderate water; blooms in midsummer, extending the bed's season; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

Zigzag Goldenrod
Shares part shade and moderate water; blooms in late summer, extending the bed's season; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

Blue Wood Aster
Shares part shade and moderate water; blooms in late summer, extending the bed's season; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

Black Cohosh
Shares part shade and moderate water; blooms in early summer as this one finishes; both are strong pollinator plants, and they feed in different months; taller at 5 ft, for the layer behind it.

Wishbone Flower
Shares part shade and moderate water; blooms in early summer as this one finishes; both are strong pollinator plants, and they feed in different months; lower at 10 in, for the front of the border.