Oenothera biennis, the common evening-primrose, is a species of flowering plant in the family Onagraceae, native to eastern and central North America, from Newfoundland west to Alberta, southeast to Florida, and southwest to Texas, and widely naturalized elsewhere in temperate and subtropical regions.
Hardiness Zones: 4-9
Native Area: North America
Other Common Names: Evening primrose, fever plant, cure-all
Bloom Time: Summer, fall
Flower Color: Yellow
Height: 3-5 feet (90-150 cm)
Spread: 2-3 feet (60-90 cm)
Light: Full to partial sun
Soil: Sand, loam, clay
Blooming Period: June to September
Native Habitat: Fields, prairies, corridors, and ditches
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