Common Name: Evening Primrose Botanical Name: Oenothera biennis Plant Type: Biennial Zones: USDA Zones 4-9 Height & Spread: 3-5 feet (height) / 1-2 feet (spread) Growth Time: 2 years to bloom ...

Evening primrose is the common name for many different species of primrose plants, but the problematic one is Oenothera speciosa. “This plant spreads by both rhizome, or underground stems ...

whose yellow flowers open during the evening and resemble the primrose plant, hence its name. Accidentally brought to Europe from North America in the 1600's, the plant quickly became known as ...

Streptocarpus (Streptocarpus) are commonly known as cape primrose, but don’t confuse them with the common primrose (Primula vulgaris), a perennial plant you may have grown outdoors at home. While the ...