Wildflower Archive

woodland wildflower

Giant wakerobin

Trillium chloropetalum

Giant wakerobin (Trillium chloropetalum)1 of 2
Mary Vaux Walcott

Native to California and Washington

Pierce county, Washington and Willamette Valley, Oregon, south to the northern Sierras and Coastal Ranges of central California

  • Light Partial shade Sun tolerance
  • Moisture Moisture preference
  • Zones 6–10 Cold to heat range
  • Bloom Mar–Jun Flowering time
  • Height up to 2 ft to 0.6 m
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A woodland wildflower for partial shade. At up to 2 ft, it suits shade gardens and woodland edges. Hardy in USDA zones 6–10.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Hardiness zones

Find your zone:

Full plant details

Where it grows

Habitat
WoodlandThe wild plant community it grows in.
Native range
California and WashingtonUnited States (2): CA, WA. Where it grows wild on its own, by state and province.
Native distribution
Pierce county, Washington and Willamette Valley, Oregon, south to the northern Sierras and Coastal Ranges of central CaliforniaThe same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Partial shadeHow much sun it takes, from full sun to full shade.
Hardiness zones
USDA 6–10 · Canadian 8–9The cold-to-heat climate range it survives.
Soil
Deep, rich, moist, well-drained soilsThe soils it grows in naturally.

Growth & form

Height
up to 2 ft (to 0.6 m)Typical mature height.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).

Flowers, foliage & fruit

Type
WildflowerWhat kind of plant it is.
Bloom
Mar–JunWhen it flowers.
Flower color
White, Red, Pink, Yellow, GreenThe bloom color, or colors.
Fruit/Seeds
BerryThe seed or fruit it sets after flowering.
Toxicity
None knownWhether any part is poisonous to people or pets.