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

White Clover
Shares full sun and moderate water; blooms in late spring, before this one opens; low at 4 in, to carpet the ground beneath; both are strong pollinator plants, and they feed in different months.

Windflower
Takes full sun to part sun and moderate water; blooms in early spring, before this one opens; low at 6 in, to carpet the ground beneath; both are strong pollinator plants, and they feed in different months.

California Privet
Shares full sun and moderate water; blooms in early summer, before this one opens; both are strong pollinator plants, and they feed in different months; taller at 12 ft, for the layer behind it.

Creeping Phlox
Shares full sun and low to moderate water; blooms in mid spring, before this one opens; low at 6 in, to carpet the ground beneath; both are strong pollinator plants, and they feed in different months.

Japanese Stewartia
Takes full sun to part sun 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.

Possumhaw Holly
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 12 ft, for the layer behind it.
Blooming alongside

Purple Poppy Mallow
Shares full sun and moderate water; opens in late spring and overlaps into this one's season; low at 8 in, to carpet the ground beneath; both are strong pollinator plants.

Common Witch Hazel
Shares full sun and moderate water; blooms in mid fall as this one finishes; both offer pollinator forage, in different months; taller at 17 ft, for the layer behind it.