Plant encyclopedia›giant American cowslip

giant American cowslip

Also known as: sierra shooting star

A herbaceous perennial up to 60cm high, with a basal rosette of oval, mid-green leaves that are slightly sticky. Pendent flowers, in shades of pink, purple and red and with distinctive swept-back petals, are held on short stalks from the top of stout flowering stems in early to mid summer

Scientific classification

Species: giant American cowslip (Dodecatheon jeffreyi)
Genus: Dodecatheon
Family: Primulaceae

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Toxicity: Herbaceous Perennial · Alpine Rockery
Plant type: 0.5-1 metres
Height: 0.1-0.5 metres
Spread: Deciduous
Foliage: Clump forming
Habit: Spring · Summer
Season of interest: Full sun · Partial shade
Sunlight: Information to be completed
Ideal temperature

giant American cowslip pictures

Distribution of giant American cowslip

Distribution map

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Culture

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Toxicity

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Quick identification of giant American cowslip

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giant American cowslip care guide

Moderate regular watering, allowing brief slight drying between soakings
Watering: Full sun · Partial shade
Sunlight: Information to be completed
Ideal temperature

Watering

Moderate regular watering, allowing brief slight drying between soakings

Fertilizing

Balanced perennial feed every four weeks from spring through summer

Pruning

No pruning required

Propagation

Propagate by seed, sown in pots in an open frame as soon as ripe, or by division in spring. Seed needs exposure to cold before it will germinate

Growing

Grow in moist but well-drained, humus rich soil in sun or part shade. Needs plenty of moisture while in growth; ideal for planting in a woodland or near a pond or stream

More growing and care information →