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

False Indigo
Shares full sun and low to moderate water; blooms in late spring, 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.

Sea Thrift
Shares full sun and low to moderate water; blooms in mid spring, before this one opens; both offer pollinator forage, in different months; evergreen, so the bed keeps its shape through winter.

Weigela
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 5 ft, for the layer behind it.

Ninebark
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 6.5 ft, for the layer behind it.

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.

Mock Orange
Shares full sun and moderate water; blooms in late spring, before this one opens; both offer pollinator forage, in different months; taller at 8 ft, for the layer behind it.

Flowering Crabapple
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; stands well above at 20 ft, a canopy to plant beneath.
Blooming alongside

Aster
Shares full sun and moderate water; blooms in early fall as this one finishes; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.