Toxic Plant Known to be toxic - Toxic if ingested.
Image of Cephalanthus occidentalis
image of Shrub
Cephalanthus occidentalis
Eastern buttonbush
Céphalanthe occidental

Obsolete Names

  • bois noir
  • bois-bouton
  • céphalante commun
  • céphalante occidental
No seeds available for this plant.

We are not accepting seeds for this plant at the moment.

Bloom colour: White Bloom period: June - July
Max Height: 12.0 feet
Max Width: 4.0 feet
Light condition:
Full sun More than 6 hours of direct sun a day
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan : Perennial Plant is dioeciousNeed a male and female plant to produce seeds
Gardener Experience:
plant germinate easy Easy to germinate
Landscape uses:
wetland garden Suitable for wetland garden
rain garden Suitable for rain gardens
shoreline_rehab Suitable for shoreline rehabilitation
container suitable Suitable for container garden
school garden Suitable for school gardens
hedge Can be used as a hedge
Ecological Benefits: No ecological benefits information available.
Tolerates:
Salt Tolerant Tolerates salt conditions
Deer Resistant Deer resistant
rabbit resistant Rabbit resistant
limestone Tolerant Tolerates limestone conditions
sand Tolerant Tolerates sandy conditions
acidic soil Tolerant Tolerates acidic soil conditions
juglone Tolerant Tolerates juglone conditions
transplantation Tolerant Tolerates transplantation

Plant Distribution

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Cephalanthus occidentalis
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent
View taxonomy on Canadensys

View on iNaturalist

Thrives in Ecozones

  • Atlantic Maritime
  • Ecozone-Mixed Wood Plain
  • Ecozone-Boreal Shield
  • Atlantic_Maritime

Butterflies Supported by Cephalanthus occidentalis

  • Eudryas grata (Beautiful Wood Nymph)

Bees Supported by Cephalanthus occidentalis

No bee data available for this plant.

Complementary Plants Plants that grow in similar conditions, that bloom at the same time.

  • No complementary plants found.

Sowing Information

  • Sowing depth: Surface sow
  • Sow anytime
  • Stratification duration: 0 days
  • Self-seeding

Harvesting Information

  • Harvesting indicator: Seeds easily fall off when you gently pull them off
  • Harvesting mean: Shake seed head in paper bag
  • Seed Viability Test: No test needed before donating
  • Packaging Measure: Six (6) seeds (eyeball)
  • Seed Storage: Air Dry in paper bag or open container, for a few days until crisp, shaking seeds to move them once in a while to prevent molding
  • On Cultivar: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity