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

Thyme
Shares full sun and low water; blooms in late 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.

Creeping Phlox
Shares full sun and low 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.

White Clover
Shares full sun and low to 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.

Bachelor's Button
Shares full sun and low water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; lower at 2.5 ft, for the front of the border.

Grape Hyacinth
Shares full sun and low water; blooms in early spring, before this one opens; low at 8 in, to carpet the ground beneath; both offer pollinator forage, in different months.

Lamb's Ear
Shares full sun and low water; blooms in early summer, before this one opens; both are strong pollinator plants, and they feed in different months; lower at 1.5 ft, for the front of the border.
Blooming alongside

Crocus
Shares full sun and low water; blooms in late winter, extending the bed's season; low at 4 in, to carpet the ground beneath; both offer pollinator forage, in different months.

California Poppy
Shares full sun and low water; opens in late spring and overlaps into this one's season; both are strong pollinator plants; lower at 12 in, for the front of the border.