Trees and shrubs

Black Titi

Cephalanthus occidentalis

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Exposure
Sun to partial shade
Hardiness
Hardiness zones 3–9

Discover the plant

Common nameBlack wood
FamilyRubiaceae
GenusCephalanthus
Specieswestern
TypeShrub
Botanical nameCephalanthus occidentalis

Cephalanthus occidentalis, commonly known as buttonbush or common buttonbush, is a remarkable native shrub, prized for its unique summer blooms and significant ecological value. It forms a dense, rounded, and well-branched habit, making it particularly suitable for naturalistic gardens, riparian strips, and moist soils. Its glossy green deciduous foliage showcases, in early summer, spherical white flowers composed of long, fragrant stamens, offering a very decorative and graphic appearance. These inflorescences are extremely attractive to pollinating insects and butterflies. Very hardy and perfectly adapted to Quebec's conditions, Cephalanthus occidentalis tolerates waterlogged soils and temporary flooding, making it an excellent choice for stabilizing banks while enriching garden biodiversity.

Bois noir (Cephalanthus occidentalis)

Soil and care

The right care,at the right time.

Minimum temperature

-40°C

Watering

Regular to abundant

Soil type

Moist to wet, tolerant

Fertilization

Little necessary, compost in spring

Bloom and dimensions

Its place,in your garden.

Mature height

3–4 m (10–13 ft)

Width / spread

3–4 m (10–13 ft)

Flower color

Creamy white

Foliage color

Dark green

Foliage type

Obsolete

Growth rate

Moderate

Growth habit

Rounded shrub

Bloom period

Summer

Fruiting

Small persistent brown capsules

Wildlife and pets

Life,around your plants.

Supporting wildlife

Yes