Companion plants for Winterberry
Winterberry blooms from October through December. It wants full sun and high water. The 8 companion pairings below each state why the pairing works.
Blooming before Winterberry opens

Joe Pye Weed
Shares full sun and high water; blooms in midsummer, before this one opens; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

Carnival Scotch Heather
Shares full sun and moderate to high water; blooms in early summer, before this one opens; low at 8 in, to carpet the ground beneath; both are strong pollinator plants, and they feed in different months.

Common Black-Eyed Susan
Shares full sun and moderate to high water; blooms in early summer, before this one opens; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

Double Dipped Raspberry Ripple Coneflower
Shares full sun and moderate to high water; blooms in midsummer, before this one opens; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

Lobelia
Takes full sun to part sun and moderate to high water; blooms in late spring, before this one opens; low at 8 in, to carpet the ground beneath; both are strong pollinator plants, and they feed in different months.

Trumpet Vine
Shares full sun and moderate to high water; blooms in early summer, before this one opens; both are strong pollinator plants, and they feed in different months; climbs to 26 ft behind it, height without the footprint.
Taking over as Winterberry finishes

Vintage Jade Distylium
Shares full sun and moderate to high water; blooms in midwinter as this one finishes; both are strong pollinator plants, and they feed in different months; evergreen, so the bed keeps its shape through winter.

Kinnikinnick
Shares full sun and moderate to high water; blooms in mid spring, extending the bed's season; low at 8 in, to carpet the ground beneath; both are strong pollinator plants, and they feed in different months.