Companion plants for Japanese Anemone
Japanese Anemone blooms from August through October. It wants part shade and moderate water. The 8 companion pairings below each state why the pairing works.
Blooming before Japanese Anemone opens

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

Japanese Stewartia
Takes part sun to part shade and moderate water; blooms in early summer, before this one opens; both are strong pollinator plants, and they feed in different months; taller at 16 ft, for the layer behind it.

Foxglove
Shares part shade and moderate water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; taller at 4 ft, for the layer behind it.

Beautyberry
Takes part sun to part shade and moderate water; blooms in early summer, before this one opens; 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, before this one opens; both offer pollinator forage, in different months; taller at 4 ft, for the layer behind it.

Meadow Rue
Shares part shade and moderate water; blooms in early summer, before this one opens; both are strong pollinator plants, and they feed in different months; taller at 4 ft, for the layer behind it.

Flowering Dogwood
Shares part shade and moderate water; blooms in mid spring, before this one opens; both are strong pollinator plants, and they feed in different months; stands well above at 23 ft, a canopy to plant beneath.

Climbing Hydrangea
Shares part shade and moderate water; blooms in early summer, before this one opens; both offer pollinator forage, in different months; its white flowers settle the pink.