Plant of the Month – March


White Evening Primrose,
Tufted Evening Primrose

Oenothera caespitosa

This lush desert groundcover is surprisingly drought-tolerant due to its deep roots. It’s large, beautiful flowers attract pollinators all night, then say goodbye each day with a fading pink farewell.

  • Plant Form: Evergreen groundcover
  • Water Use: Low
  • Mature Size: 6 – 12 inches tall  x 2 – 3 feet wide
  • Exposure: Full or filtered sun
  • Bloom Time: On & off all year; most prolific in Spring, Summer, Fall (Apr – Sept)
  • Native to: Western U.S. and Mexico
  • Hardiness: Cold hardy to 0°F

White Evening Primrose creates masses of fragrant, four-inch wide, snow-white flowers each evening that attract night-flying pollinators like hawk moths. Throughout the next day, we can enjoy each one-day flower that opened at dusk as it ages from white to pink before closing in the heat of day. Plants form a rosette of large, fuzzy, dark-green leaves. While short lived (usually three years), this plant is fast-growing, and easily reseeds. Replace when plants begin to decline or die out. White Evening Primrose requires excellent soil drainage and a little supplemental water in summer, but too much summer water will kill it. Trim off dead leaves and seedpods. This southwest beauty makes a delightful border flower in small spaces, entryways, and patios, and offers a colorful accent in rock gardens.