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Native Range: West cost US
Hardiness Zone: USDA Zone 3a: to -39.9 °C
Soil: Humusy soils. Tolerate clay soil.
Moisture: Moist to medium
Light: Part shade, shady
Flowering Period: July – August
Garden locations: Areas in a native plant or wildflower garden, woodland garden, rock garden.
Price: 4 €
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