Oenothera elata ssp. hirsutissima
Plants of the Southwest

Oenothera elata ssp. hirsutissima

Yellow Evening Primrose

Night-flowering biennial - open evenings, morning and all day if cloudy. Big, bright yellow flowers (fading to red) borne profusely on 2-5 ft. stalks. Yellow Evening Primrose is invasive, or abundant, under irrigation. Sow anytime. Zones 3-8.

    Zones, Sun & Water Needs: 345678


Legend of Symbols

Full Sun
Full Sun
Part Shade
Part Shade
Fragrant
Very Low Water 
Very Low Water
Low Water 
Low Water
Medium Water 
Medium Water