tiarella
Buttonbush in flower
Rufino Osorio (also known as Desmodium) · CC BY-SA 2.5 · source

Buttonbush

Cephalanthus occidentalis

White flowers from March into July, worked by brown-belted bumble bees and confusing bumble bees. It grows wild in 62 of Louisiana’s 64 parishes.

Light
Full sun
Soil
Moist to wet soil
Size
About 15 ft tall, 6 ft wide
Flowers
White, Mar to Jul
Leaves
Deciduous
Roots
Woody roots; wants 14 in of soil
Kind
Tree, Shrub

Planted young

Buttonbush, drawn in a bed

in flowerfall colorbare for winter

What it feeds

Caterpillars
25 kinds of caterpillars
Bees
23 kinds of native bees
Birds
2 kinds of birds
On its flowers
Brown-belted bumble bee (Bombus griseocollis), Confusing bumble bee (Bombus perplexus), Yellow-banded bumble bee (Bombus terricola), Giant resin bee (Megachile sculpturalis)

Grows well with

Facts from the Quercus record for Cephalanthus occidentalis.