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

Evergreen Huckleberry
Shares part shade and moderate water; blooms in mid spring, before this one opens; stands well above at 7.5 ft, a canopy to plant beneath; evergreen, so the bed keeps its shape through winter.

Pinxterbloom Azalea
Shares part shade and moderate water; blooms in mid spring, before this one opens; stands well above at 5.5 ft, a canopy to plant beneath; evergreen, so the bed keeps its shape through winter.

Mountain Laurel
Shares part shade and moderate water; blooms in late spring, before this one opens; stands well above at 9 ft, a canopy to plant beneath; evergreen, so the bed keeps its shape through winter.

Bottlebrush Grass
Shares part shade and moderate water; blooms in early summer, before this one opens; its seed heads stand through winter, for structure and the birds; taller at 3 ft, for the layer behind it.

Sarah Elizabeth
Shares part shade and moderate water; blooms in late spring, before this one opens; climbs to 4.5 ft behind it, height without the footprint; echoes the pink.
Blooming alongside

Northern Sea Oats
Shares part shade and moderate water; opens in midsummer and overlaps into this one's season; taller at 3.5 ft, for the layer behind it; its seed heads stand through winter, for structure and the birds.

Western Sword Fern
Takes part shade to full shade and moderate water; taller at 3.5 ft, for the layer behind it; evergreen, so the bed keeps its shape through winter.

Zigzag Goldenrod
Shares part shade and moderate water; opens in late summer and overlaps into this one's season; its seed heads stand through winter, for structure and the birds; taller at 2.5 ft, for the layer behind it.