Companion plants for Pampas Grass
Pampas Grass 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 Pampas Grass opens

Bachelor's Button
Shares full sun and low water; blooms in late spring, before this one opens; lower at 2.5 ft, for the front of the border; a soft color beside the white.

Aloe
Shares full sun and low water; blooms in late spring, before this one opens; low at 1.5 ft, to carpet the ground beneath; a soft color beside the white.

Candytuft
Shares full sun and low water; blooms in mid spring, before this one opens; low at 10 in, to carpet the ground beneath; its white flowers settle the white.

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; a soft color beside the white; they only overlap in zones 7 to 8.
Blooming alongside

Gazania
Shares full sun and low water; low at 10 in, to carpet the ground beneath; opens in early summer and overlaps into this one's season; a soft color beside the white.

California Poppy
Shares full sun and low water; opens in late spring and overlaps into this one's season; low at 12 in, to carpet the ground beneath; a soft color beside the white.

Butterfly Weed
Shares full sun and low water; opens in early summer and overlaps into this one's season; lower at 2 ft, for the front of the border; a soft color beside the white.

Oregano
Shares full sun and low water; opens in early summer and overlaps into this one's season; low at 1.5 ft, to carpet the ground beneath; a soft color beside the white.