Erythronium oregonum

11 May

Erythronium oregonum (21/04/2013, Kew Gardens, London)

Erythronium oregonum (21/04/2013, Kew Gardens, London)

Position: Partial shade

Flowering period: Spring

Soil: Moist, well drained

Eventual Height: 40cm

Eventual Spread: 40cm

Hardiness: 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b

Family: Liliaceae

Erythronium oregonum is a deciduous herbaceous, perennial with a clump forming habit. Its dark green, brown/ white mottled  leaves appear in pairs, are lanceolate to ovate with entire margins, up to 22cm long and 10cm broad. Its white/ cream flowers are Lilly like, up to 45mm across and appear in groups of one to three on long, naked stalks. Its roots emerge from an oval shaped bulb which is up to 5cm wide.

Erythronium oregonum, commonly known as the Giant White Fawn Lily, Western White Fawn Lily or Oregon Fawn Lily, is native to the west coastal regions of North America. In its native habitat it grows in open woodlands and damp meadows.

The etymological root of the binomial name Erythronium is derived from the Greek erythros meaning ‘red’, as to what the red refers to in this species we are unclear. Oregonum is derived from the Latin meaning ‘from Oregon’.

Erythronium oregonum Flower (21/04/2013, Kew Gardens, London)

Erythronium oregonum Flower (21/04/2013, Kew Gardens, London)

The landscape architect may find Erythronium oregonum useful in shady moist locations including woodlands.

Ecologically,  Erythronium oregonum flowers are attractive to pollinating insects.

Erythronium oregonum prefers moist, humus rich fertile, well-drained soils. It tolerates most pH of soil.

Erythronium revolutum requires little maintenance. Large clumps may be divided after flowering.

Davis Landscape Architecture


2 Responses to “Erythronium oregonum”

  1. Laurie 21/04/2015 at 23:24 #

    I have had one fawn lily all by it’s self for 14 years…how can I help it spread?

    • Davis Landscape Architecture 22/04/2015 at 07:08 #

      The plant may be dug up after flowering. The new corm offsets may then be removed and planted 75mm deep. The original plant and corm offsets should be replanted/ planted as soon as possible and watered well. The plant and corms should then be mulched well with leaf mulch. Good luck.

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