Oenothera speciosa
Mexican Evening Primrose

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Butterfly FriendlyDeer ResistantPart ShadeBird Friendly
Mexican Evening Primrose
Oenothera speciosa

Despite the name, this full sun groundcover blooms during the day. Each spring the plants are absolutely covered in fragrant, pink blossoms. It may go dormant in mid-summer and mid-winter but will quickly regrow with the first rains. This is a vigorous grower that is great for covering slopes.

A magnet for native butterflies and moths
Birds, especially finches love to eat its seed
Hummingbirds love its nectar
Tolerates poor soil and drought
Deer resistant
Fragrant massive bloom

Native Range

Arizona. Found on Arizona roadsides, ponderosa forest clearings, dry, rocky slopes and disturbed ground.

Interesting Facts

The two-tail swallowtail, with a wingspan of as much as 4 1/2 inches, is the largest of the family within the Southwest and is commonly found feeding on Evening Primrose. In 2001 it was designated as the official state butterfly of Arizona.


Remove spent blossoms the first few weeks and then let it go to seed to feed the birds. Fertilize in spring with an organic fertilizer. To prevent summer dormancy, water sparingly. 

Mature Size: 6-12in. Tall x 2-3ft. Wide

Hardiness Zone: 5-9

Sun Exposure: Part Shade

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