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

White Clover
Takes full sun to part sun and moderate water; blooms in late spring, before this one opens; low at 4 in, to carpet the ground beneath; both offer pollinator forage, in different months.

Sea Thrift
Takes full sun to part sun and low to moderate water; blooms in mid spring, before this one opens; lower at 8 in, for the front of the border; evergreen, so the bed keeps its shape through winter.

Thyme
Takes full sun to part sun and low to moderate water; blooms in late spring, before this one opens; low at 6 in, to carpet the ground beneath; both offer pollinator forage, in different months.

Rhododendron
Takes part sun to part shade and moderate water; blooms in late spring, before this one opens; both offer pollinator forage, in different months; evergreen, so the bed keeps its shape through winter.

Japanese Stewartia
Shares part sun and moderate water; blooms in early summer, before this one opens; both offer pollinator forage, in different months; taller at 16 ft, for the layer behind it.
Taking over as Monkshood finishes

Snowdrop
Takes part sun to part shade and moderate water; blooms in late winter, extending the bed's season; low at 5 in, to carpet the ground beneath; both offer pollinator forage, in different months.

Sweet Alyssum
Takes full sun to part sun and moderate water; overlaps, then carries the display into mid fall; low at 5 in, to carpet the ground beneath; both offer pollinator forage.
Blooming alongside

Creeping Sedum
Takes full sun to part sun and low to moderate water; opens in early summer and overlaps into this one's season; low at 4 in, to carpet the ground beneath; evergreen, so the bed keeps its shape through winter.