Companion plants for Mint
Mint blooms from June through August. It wants part sun and high water. The 8 companion pairings below each state why the pairing works.
Blooming before Mint opens

Azalea
Takes part sun to part shade and moderate to high water; blooms in mid spring, before this one opens; evergreen, so the bed keeps its shape through winter; taller at 4 ft, for the layer behind it.

Camellia
Takes part sun to part shade and moderate to high water; blooms in midwinter, before this one opens; evergreen, so the bed keeps its shape through winter; taller at 6.5 ft, for the layer behind it.

Flowering Dogwood
Takes part sun to part shade and moderate to high water; blooms in mid spring, before this one opens; its white flowers settle the purple.

Lilac
Takes full sun to part sun and moderate to high water; blooms in mid spring, before this one opens; taller at 10 ft, for the layer behind it; echoes the purple.
Taking over as Mint finishes

Perennial Sunflower
Takes full sun to part sun and moderate to high water; overlaps, then carries the display into mid fall; its seed heads stand through winter, for structure and the birds; taller at 5 ft, for the layer behind it; this one spreads, so it will crowd its neighbor in time.

Aster
Takes full sun to part sun and moderate to high water; blooms in early fall as this one finishes; its seed heads stand through winter, for structure and the birds; echoes the purple; this one spreads, so it will crowd its neighbor in time.
Blooming alongside

Bugleweed
Takes part sun to part shade and moderate to high water; opens in mid spring and overlaps into this one's season; evergreen, so the bed keeps its shape through winter; lower at 6 in, for the front of the border.

Arborvitae
Takes full sun to part sun and moderate to high water; evergreen, so the bed keeps its shape through winter.