Companion plants for Sunflower
Sunflower blooms from July through September. It wants full sun and moderate water. The 8 companion pairings below each state why the pairing works.
Blooming before Sunflower opens

Common Pawpaw
Shares full sun and moderate water; blooms in mid spring, before this one opens; both are strong pollinator plants, and they feed in different months; taller at 17 ft, for the layer behind it.

Dutchman's Pipe
Takes full sun to part sun and moderate water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; climbs to 24 ft behind it, height without the footprint.

White Fringetree
Shares full sun and moderate water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; taller at 17 ft, for the layer behind it.

Pansy
Takes full sun to part sun and moderate water; blooms in early spring, before this one opens; low at 8 in, to carpet the ground beneath; both offer pollinator forage, in different months.

Common Persimmon
Shares full sun and moderate water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; taller at 35 ft, for the layer behind it.

Golden Alexanders
Shares full sun and moderate water; blooms in mid spring, before this one opens; both are strong pollinator plants, and they feed in different months; lower at 2 ft, for the front of the border.

Chives
Shares full sun and moderate water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; low at 12 in, to carpet the ground beneath.

Goodding's Verbena
Shares full sun and moderate water; blooms in mid spring, before this one opens; both are strong pollinator plants, and they feed in different months; low at 12 in, to carpet the ground beneath.