Companion plants for Azalea
Azalea blooms from April through May. It wants part shade and moderate water. The 8 companion pairings below each state why the pairing works.
Taking over as Azalea finishes

Wishbone Flower
Shares part shade and moderate water; blooms in early summer as this one finishes; lower at 10 in, for the front of the border; both are strong pollinator plants, and they feed in different months.

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

Lobelia
Takes part sun to part shade and moderate water; overlaps, then carries the display into early fall; lower at 8 in, for the front of the border; both are strong pollinator plants.

Dead Nettle
Shares part shade and moderate water; overlaps, then carries the display into midsummer; lower at 8 in, for the front of the border; both offer pollinator forage.

Spiderwort
Takes part sun to part shade and moderate water; blooms in early summer as this one finishes; both offer pollinator forage, in different months; lower at 1.5 ft, for the front of the border.

Fuchsia
Shares part shade and moderate water; blooms in early summer as this one finishes; both offer pollinator forage, in different months; lower at 1.5 ft, for the front of the border.

Beautyberry
Takes part sun to part shade and moderate water; blooms in early summer as this one finishes; both are strong pollinator plants, and they feed in different months; purple sits close to pink on the wheel.
Blooming alongside

Snowdrop
Shares part shade and moderate water; blooms in late winter, before this one opens; low at 5 in, to carpet the ground beneath; both are strong pollinator plants, and they feed in different months.