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Summary
Physical Characteristics
Erythronium oregonum is a BULB growing to 0.5 m (1ft 8in) by 0.1 m (0ft 4in).
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; Lawn;
Edible Uses
Edible Parts: Root
Edible Uses:
Bulb - raw, cooked or dried for later use[183, 257]. The bulb is from 25 - 60mm long[270]. Some caution should be employed, see the notes above on toxicity[256].
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.
Poultice
The crushed corm is used as a poultice for boils[207, 257].
References More on Medicinal Uses
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Other 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 are hardy to about -15°c[90]. Flowers are produced in 3 - 4 years from seed[164]. Plants increase rapidly by offsets[188]. Bulbs should be planted about 7cm deep[1]. This species is closely related to E. revolutum and occasionally hybridizes with it where their ranges meet[270]. In addition, E. citrinum and E. hendersonii are reported to hybridize with E. oregonum in the southern part of its range[270]. This species is closely related to E. californicum[200].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
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The PFAF Bookshop
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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
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| Latin Name | Common Name | Habit | Height | Hardiness | Growth | Soil | Shade | Moisture | Edible | Medicinal | Other |
| Erythronium albidum | White Trout-Lily, White fawnlily | Bulb | 0.1 |
4-8
| | LM | S | M | 3 | 0 | |
| Erythronium albidum mesochoreum | Prairie Trout Lily | Bulb | 0.1 |
4-8
| | LM | S | M | 3 | 0 | |
| Erythronium americanum | Trout Lily, Dogtooth violet | Bulb | 0.2 |
3-7
| | LM | S | M | 4 | 1 | 3 |
| Erythronium californicum | Fawn Lily, California fawnlily | Bulb | 0.3 |
0-0
| | LM | S | M | 2 | 0 | |
| Erythronium citrinum | Pale Fawn Lily, Cream fawnlily, Roderick's fawnlily | Bulb | 0.3 |
0-0
| | LM | S | M | 2 | 0 | |
| Erythronium dens-canis | Dog's-Tooth Violet | Bulb | 0.2 |
3-7
| | LM | S | M | 3 | 0 | |
| Erythronium grandiflorum | Avalanche Lily, Yellow avalanche-lily | Bulb | 0.2 |
4-8
| | LM | S | DM | 3 | 1 | |
| Erythronium helenae | Mt. St. Helena Fawm Lily, Pacific fawnlily | Bulb | 0.3 |
4-8
| | LM | S | M | 2 | 0 | |
| Erythronium hendersonii | Henderson's Fawn Lily | Bulb | 0.3 |
0-0
| | LM | S | M | 2 | 0 | |
| Erythronium howellii | Howell's Fawn Lily | Bulb | 0.3 |
-
| | LM | S | M | 2 | 0 | |
| Erythronium japonicum | Katakuri | Bulb | 0.2 |
-
| | LM | S | M | 4 | 0 | |
| Erythronium montanum | Avelanche Lily, White avalanche-lily | Bulb | 0.3 |
0-0
| | LM | S | M | 2 | 0 | |
| Erythronium multiscapideum | Adderstongue | Bulb | 0.3 |
-
| | LM | S | M | 2 | 0 | |
| Erythronium purpurascens | Avelanche Lily, Purple fawnlily | Bulb | 0.3 |
0-0
| | LM | S | M | 2 | 0 | |
| Erythronium revolutum | Pink Fawn Lily, Mahogany fawnlily | Bulb | 0.3 |
4-8
| | LM | S | M | 3 | 0 | |
| Erythronium tuolumnense | Tuolumne Fawn Lily, Dog's Tooth Violet, Pagoda Lily | Bulb | 0.3 |
4-9
| M | LM | S | M | 2 | 0 | |
|
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.
Expert comment
Author
Applegate.
Botanical References
60200270
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Links / References
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Subject : Erythronium oregonum
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