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

Rhododendron
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.

Meadow Rue
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 4 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.

Beautyberry
Takes part sun to 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.

Goatsbeard
Shares part shade and moderate water; blooms in early summer as this one finishes; both offer pollinator forage, in different months; taller at 4 ft, for the layer behind it.

Spiderwort
Takes part sun to part shade and moderate water; blooms in early summer as this one finishes; both offer pollinator forage, in different months; echoes the purple.

Lobelia
Takes part sun to part shade and moderate water; overlaps, then carries the display into early fall; both are strong pollinator plants; lower at 8 in, for the front of the border.

Summersweet
Shares part shade and moderate to high water; blooms in midsummer, extending the bed's season; both are strong pollinator plants, and they feed in different months; taller at 6 ft, for the layer behind it.