Companion plants for Flowering Dogwood
Flowering Dogwood blooms from April through May. It wants part shade and moderate water. The 8 companion pairings below each state why the pairing works.
Taking over as Flowering Dogwood 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; shorter at 4 ft, an understory layer.

Goatsbeard
Shares part shade and moderate water; blooms in early summer as this one finishes; both offer pollinator forage, in different months; shorter at 4 ft, an understory layer.

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; shorter at 5 ft, an understory layer.

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; both are North American natives.

Japanese Stewartia
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; its white flowers settle the white.

Flowering Tobacco
Takes part sun to part shade and moderate water; blooms in early summer as this one finishes; both offer pollinator forage, in different months; its white flowers settle the white.
Blooming alongside

Camellia
Shares part shade and moderate water; blooms in midwinter, before this one opens; both are strong pollinator plants, and they feed in different months; evergreen, so the bed keeps its shape through winter.