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

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

Perennial Sunflower
Takes full sun to part sun 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.

Sneezeweed
Takes full sun to part sun 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.

Joe Pye Weed
Takes full sun to part sun and moderate to high 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.

Ninebark
Takes full sun to part sun and moderate water; blooms in late spring as this one finishes; both are strong pollinator plants, and they feed in different months; shorter at 6.5 ft, an understory layer.

Weigela
Takes full sun to part sun and moderate water; blooms in late spring as this one finishes; both are strong pollinator plants, and they feed in different months; shorter at 5 ft, an understory layer.

Hybrid Tea Rose
Takes full sun to part sun and moderate water; blooms in late spring as this one finishes; both are strong pollinator plants, and they feed in different months; shorter at 4 ft, an understory layer.

Lavender
Takes full sun to part sun and low to moderate water; blooms in early summer, extending the bed's season; both are strong pollinator plants, and they feed in different months; evergreen, so the bed keeps its shape through winter.