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Glendale Public Library
Xeriscape Demonstration Garden Information Sheet

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Oenothera speciosa 'Rosea'-Mexican Evening Primrose

 Mexican Evening Primrose has long been a favorite for its glorious displays of pink blossoms. In early spring this unassuming ground cover produces carpets of delicate light to dark pink flowers, and can continue to flower into the summer if adequate water is provided. However, this plant is fairly inconspicuous the rest of the year. In fact, it usually goes dormant in the summer heat and winter cold, with the foliage burning back to the ground. Luckily, this plant has underground stems, which allow it to bounce back from any damage to the foliage. In fact, these underground stems can be rather invasive, so it is best to use it in a confined space. Simply cut this plant back whenever it looks ratty to encourage new growth. Mexican evening primrose can be planted in full sun or under the canopies of desert trees such as palo verdes, sweet acacias, and mesquites. Flea beetles can quickly devastate plants in the spring and fall, but are easily controlled with insecticides. Birds feast on the seeds produced after flowering. USDA Zone 7. 

Webmaster & Author George Hull Last Updated August 13, 2003