Corrected version E vening primroses grow all over the West and in Mexico, from prairies to deserts to mountains. There are 21 species in Arizona alone. In our Tucson gardens, we can grow several perennial evening primroses successfully. They are showy and easy to cultivate.
All evening primroses have four petals and they open in early evening.
They close the next morning. Luckily they don't always adhere tightly to the clock and some flowers are open during the day. They like partial sun to sunny exposures, occasional deep soakings, and they usually put on their best show in the spring. Native to Texas and Mexico, this rambling plant usually gets raves for its masses of delicate pale pink flowers in the springtime. It is most beautiful mixed with other plantings since it can be rather dull looking when not in bloom.