Perennials

Trillium ovatum (Coast Trillium)

Trillium ovatum

Also known as Western Trillium

$15.95

Size

☀SunPart shade to full shade
💧WaterModerate (moist in spring, dormant in summer)
🌡Zones5-8
🦌DeerResistant
🌊CoastalSuitable

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About This Plant

Trillium ovatum (Coast Trillium), 'Coast Trillium', is valued for seasonal interest and the role it plays in PNW garden borders.

An ornamental perennial valued for its seasonal flower display and the role it plays in the garden border.

Full sun to part shade suits this species. Plant in moist, well-drained soil. Hardy USDA Zone 5 to 9. Provide consistent moisture during establishment. Cut back in late fall or early spring.

For a Pacific Northwest native perennial of similar character, consider Aquilegia formosa (Western Red Columbine), Tellima grandiflora (Fringecups), or Dicentra formosa (Pacific Bleeding Heart) , all support native pollinators.

Plant Details

Botanical
Trillium ovatum
Common name
Western Trillium
Mature size
12-18 in tall × 12 in wide
Growth rate
Very slow
Bloom time
Early spring (March–May)
Bloom color
Pink, White
Foliage color
Green

Care Notes

Plant rhizomes 2-3 inches deep in fall in humus-rich, moist, well-drained, acid to neutral soil. Very slow to establish; expect 5-7 years from seed to first bloom. Do not pick the flower; removing it takes the stem and photosynthetic tissue with it and can kill the plant. Maintain even moisture in spring; plants go summer-dormant after seed set. Protect from deer, which readily browse foliage and buds.

Garden Attributes

  • Pacific NW native
  • Deer resistant
  • Coastal suitable
  • Grown organically
  • Pollinator value: Bumblebees
  • Wildlife: Pollinator support
Row of potted bareroot conifer trees at Dragonfly Farm

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