About

Erythronium americanum, the American trout lily, is a spring-flowering, bulbous woodland perennial from eastern North America producing paired, beautifully bronze-mottled, lance-shaped leaves and solitary, nodding, yellow flowers with reflexed petals. A native wildflower for a moist, humus-rich, partly shaded woodland garden.

About the genus

Erythronium, the trout lilies or dog's-tooth violets, are bulbous woodland perennials with paired, often mottled, lance-shaped leaves and solitary or few-flowered racemes of nodding, reflexed-petal flowers in white, yellow, pink or mauve in spring. Excellent plants for moist, humus-rich, woodland conditions.

Growing conditions

SunlightPartial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, West-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH5

Plant details

Plant typeBulbs
HabitTufted
FoliageDeciduous
Height0.1-0.5 metres
Spread0-0.1 metre
Time to full height2-5 years
Suggested usesCottage and informal garden, Patio and container plants, Rock garden
Native toCalifornia
FragranceFlower
ToxicityOrnamental bulbs, not to be eaten. Wear gloves and other protective equipment when handling Pets: Ornamental bulbs, not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers

Care notes

CultivationPlant 10cm deep in fertile, humus-rich, well-drained soil that does not dry out. Bulbs in storage must be kept slightly damp. See bulb cultivation
PruningNo pruning required
PropagationPropagate by division after flowering
Pest resistanceMay be susceptible to slugs
Disease resistanceGenerally disease-free