Oenothera capillifolia ssp. capillifolia (Texas primrose)
Synonym: Calylophus drummondianus.
Also knows as Berlandier's Sundrops, Square-bud Primrose, Sundrops.
Texas Primrose is a drought tolerant low-growing perennial with large bright yellow flowers. It needs good drainage and sunny exposure but is not fussy otherwise. It does well in sandy or rocky soil. Deadheading (removing spent blooms) prolongs the blooming period. It can be cut back periodically to maintain a neater appearance.
Texas Primrose is an excellent rock garden plant that also works well as walkway border and in perennial, naturalized or pollinator gardens.
AT A GLANCE
|Sun exposure||Sun, part sun|
|Bloom time||Spring, summer|
|Mature height||1 ft or less|
|Mature spread||2-3 ft|
|Notes||Needs good drainage.|
|Present in state|
|Present in county and native|
|Native to North America, but adventive & escaped in state|
|Not present in state|
|Present and rare, native in county|
|Previously present, now extinct|
|Questionable presence (cross-hatched, regardless of color)|