‘A Tough Texas Beauty,’ that’s what Calylophus hartweggii is. This native Texan shines like the hot Texas sun. Mounds of bright lemon yellow, primrose-type flowers bloom throughout the spring and then sporadically till fall. The lovely yellow flowers open in the evening and stay open through the next day, at which time they close. Pollination takes place at night by the hawk moth.
Full sun and good drainage are required. C. hartweggii actually likes reflected heat. An important fact to remember when planning your landscape.
No Sunscreen Required. A Real Sun Lover