Companion plants for Goldenrod
Goldenrod 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 Goldenrod opens

Thyme
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 6 in, for the front of the border.

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.

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; blue against yellow, for contrast.

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; purple against yellow, for contrast.

Perennial Salvia
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; purple against yellow, for contrast.

Japanese Stewartia
Takes full sun to part sun and low to moderate water; blooms in early summer, before this one opens; both are strong pollinator plants, and they feed in different months; taller at 16 ft, for the layer behind it.

Smokebush
Shares full sun and low water; blooms in early summer, before this one opens; both offer pollinator forage, in different months; taller at 10 ft, for the layer behind it.
Blooming alongside

California Poppy
Shares full sun and low water; opens in late spring and overlaps into this one's season; both are strong pollinator plants; both are North American natives.