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

Rock Cress
Shares full sun and low 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.

Rosemary
Shares full sun and low water; blooms in early spring, before this one opens; both are strong pollinator plants, and they feed in different months; evergreen, so the bed keeps its shape through winter.

Creeping Phlox
Shares full sun and low water; blooms in mid spring, before this one opens; both are strong pollinator plants, and they feed in different months; lower at 6 in, for the front of the border.

Viburnum
Shares full sun and low to moderate water; blooms in mid spring, before this one opens; both offer pollinator forage, in different months; stands well above at 6.5 ft, a canopy to plant beneath.

Freesia
Shares full sun and low to moderate water; blooms in mid spring, before this one opens; both are strong pollinator plants, and they feed in different months.
Blooming alongside

Sea Thrift
Shares full sun and low water; opens in mid spring and overlaps into this one's season; evergreen, so the bed keeps its shape through winter; both offer pollinator forage.

Lavender
Shares full sun and low water; both are strong pollinator plants; evergreen, so the bed keeps its shape through winter.

Thyme
Shares full sun and low water; opens in late spring and overlaps into this one's season; both are strong pollinator plants; lower at 6 in, for the front of the border.