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Erythronium helenae - Appleg.

Common Name Mt. St. Helena Fawm Lily, Pacific fawnlily
Family Liliaceae
USDA hardiness 4-8
Known Hazards Although no records of toxicity have been seen for this species, the following notes have been seen for another member of this genus and so some caution is advised. Skin contact with the bulbs has been known to cause dermatitis in sensitive people[65].
Habitats Well-watered volcanic soils and leaf mold, in brush and woods, 450- 700 metres[71].
Range Western N. America - N.W. California.
Edibility Rating    (2 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care (info)
Fully Hardy Moist Soil Semi-shade
Erythronium helenae Mt. St. Helena Fawm Lily, Pacific fawnlily


http://commons.wikimedia.org/wiki/User:Stan_Shebs
Erythronium helenae Mt. St. Helena Fawm Lily, Pacific fawnlily
http://commons.wikimedia.org/wiki/User:Stan_Shebs

 

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Summary


Physical Characteristics

 icon of manicon of bulb
Erythronium helenae is a BULB growing to 0.3 m (1ft).
See above for USDA hardiness. It is hardy to UK zone 5 and is not frost tender. It is in flower from April to May, and the seeds ripen from June to July. The species is hermaphrodite (has both male and female organs).
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland). It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Habitats

Woodland Garden Dappled Shade; Shady Edge;

Edible Uses

Edible Parts: Root
Edible Uses:

The following use has been noted for the closely related E. origonum and probably also applies to this species[K], which has corms 6 - 8cm long and up to 15mm thick[71]. Bulb - raw, cooked or dried for later use[183].

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.


None known

References   More on Medicinal Uses

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FOOD FOREST PLANTS

Other Uses

None known

Special Uses

References   More on Other Uses

Cultivation details

Prefers slightly acid soil conditions but succeeds in chalky soils if these contain plenty of humus[164]. Requires semi-shade, preferably provided by trees or shrubs, and a well-drained soil[42, 164]. Succeeds in almost any light soil, preferring one that is rich in humus[1]. Plants prefer perfect drainage and require drier conditions when dormant[200]. Plants are hardy to at least -15°c[200]. Plants are growing well in the light shade of a woodland garden at Kew[K]. Bulbs should be planted about 7cm deep[1]. This species is closely related to E. californicum, E. origonum, E. citrinum and E. howellii[207].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.

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Propagation

Seed - best sown as soon as it is ripe in a shady position in a cold frame. Water lightly in summer, it should germinate in autumn or winter[164, 200]. Stored seed requires a period of cold stratification[164]. Sow as early in spring as possible in a cold frame. Sow the seed thinly so that it will not be necessary to prick them out for their first year of growth. Give an occasional liquid feed to the seedlings to make sure that they do not become nutrient deficient. When the plants are dormant, pot up the small bulbs putting 2 - 3 bulbs in each pot. Grow them on in a shady position in the greenhouse for another 2 3 years and then plant them out into their permanent positions when they are dormant in late summer. Division of the bulbs in the summer as the leaves die down[1]. Larger bulbs can be replanted immediately into their permanent positions, but it is best to pot up smaller bulbs and grow them on in a shady position in a greenhouse for a year before planting them out when dormant in late summer.

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Erythronium albidumWhite Trout-Lily, White fawnlilyBulb0.1 4-8  LMSM30 
Erythronium albidum mesochoreumPrairie Trout LilyBulb0.1 4-8  LMSM30 
Erythronium americanumTrout Lily, Dogtooth violetBulb0.2 3-7  LMSM413
Erythronium californicumFawn Lily, California fawnlilyBulb0.3 0-0  LMSM20 
Erythronium citrinumPale Fawn Lily, Cream fawnlily, Roderick's fawnlilyBulb0.3 0-0  LMSM20 
Erythronium dens-canisDog's-Tooth VioletBulb0.2 3-7  LMSM30 
Erythronium grandiflorumAvalanche Lily, Yellow avalanche-lilyBulb0.2 4-8  LMSDM31 
Erythronium hendersoniiHenderson's Fawn LilyBulb0.3 0-0  LMSM20 
Erythronium howelliiHowell's Fawn LilyBulb0.3 -  LMSM20 
Erythronium japonicumKatakuriBulb0.2 -  LMSM40 
Erythronium montanumAvelanche Lily, White avalanche-lilyBulb0.3 0-0  LMSM20 
Erythronium multiscapideumAdderstongueBulb0.3 -  LMSM20 
Erythronium oregonumGiant White FawnlilyBulb0.5 4-8  LMSM21 
Erythronium purpurascensAvelanche Lily, Purple fawnlilyBulb0.3 0-0  LMSM20 
Erythronium revolutumPink Fawn Lily, Mahogany fawnlilyBulb0.3 4-8  LMSM30 
Erythronium tuolumnenseTuolumne Fawn Lily, Dog's Tooth Violet, Pagoda LilyBulb0.3 4-9 MLMSM20 

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

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