Western Trillium
Trillium ovatum

Family: Trilliaceae
Genus: Trillium (TRIL-ee-um) (Info)
Species: ovatum (oh-VAY-tum) (Info)
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Category:

Perennials

Height:

24-36 in. (60-90 cm)

Spacing:

6-9 in. (15-22 cm)

Hardiness:

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:

Light Shade

Danger:

Unknown - Tell us

Bloom Color:

White/Near White

Bloom Time:

Late Winter/Early Spring

Mid Spring

Late Spring/Early Summer

Foliage:

Herbaceous

Variegated

Other details:

Average Water Needs; Water regularly; do not overwater

This plant may be considered a protected species; check before digging or gathering seeds

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Non-patented

Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

From seed; direct sow outdoors in fall

Seed Collecting:

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Crescent City, California

Saint Paul, Minnesota

Corvallis, Oregon

Eugene, Oregon

Monmouth, Oregon

Salem, Oregon

Artondale, Washington

Bellevue, Washington

Brady, Washington

Kalama, Washington

Olympia, Washington

Port Angeles, Washington

Woodinville, Washington

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Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Positive

On Apr 1, 2011, xyris from Sebring, FL (Zone 9b) wrote:

I have hundreds (maybe a few thousand) Trillium ovatum now in flower in natural habitat at my home in Gig Harbor, WA, nearing peak flowering on April 1, 2011. This Trillium seems to grow equally well in swamps on deep muck saturated to the surface almost year round (under mostly deciduous trees) and in well-drained, moist, mostly shady, coniferous forests. There is very little of it in the dense shade of Thuja plicata stands, at least on my property.

Neutral

On Jun 24, 2001, wannadanc from Olympia, WA wrote:

Trillium ovatum: Western native. Resembles T. grandiflorum but has narrower petals; flowers are usually upright and are borne on stalks.