Gulf Coast Penstemon
Penstemon tenuis
FAMILY: Plantaginaceae (Plantain Family)A resilient native native Texas herbaceous that provides year-round foliage and structure to the landscape. Native across the Gulf Coast Prairies and Marshes, Gulf Coast Penstemon (Penstemon tenuis) thrives in local conditions while supporting the surrounding ecosystem. Distinguished by dark foliage that is glaucous green, it offers an exceptional visual and tactile texture. During spring, the plant produces purple flower clusters. Flowering is followed by green to dark grey 13-18 mm follicles, 2 mm seeds that add vibrant visual contrast and seasonal interest. It plays a vital ecological role as a larval host plant for Central Texas butterflies, including Common Buckeye. Attracts butterflies and bumblebees. Thriving in clay, loam, moist, poor drainage, and sand, Gulf Coast Penstemon demonstrates outstanding hardiness once established. It requires minimal supplemental water and adapts seamlessly to drought conditions.

Gulf Coast Penstemon
Penstemon tenuis
Texas Native Ecoregions2 REGIONS
Gulf Coast Prairies and Marshes
1 ft.
0.5 ft.
Deciduous
Larval food plant for: Common Buckeye
Larval host plant for Central Texas butterflies: Common Buckeye. Verified online via Texas Entomology (Mike Quinn). Verified via Texas Entomology (Mike Quinn, texasento.net) and Lady Bird Johnson Wildflower Center (wildflower.org).
Non-toxic to humans, birds, and domestic animals.
Low maintenance once established.