Needs well drained soil. It will hybridize with Penstemon cobea. Cut stems back when they turn brown or let go to seed. Propagation: Seed, cuttings. Cold moist stratification seems to work best for germination.
Comments
Blooms March-July. Small bushy stature, intense red color, and large flowers set this penstemon apart from others. It makes good cut flowers. Pollination: Hummingbirds and bees.
References
1) Griffith, Bryce, Omernick & Rodgers (2007). Ecoregions of Texas. 2) Miller, George O., Landscaping with Native Plants of Texas 2nd Ed., 2013, pg 48. 3) Wasowski and Wasowski, Native Texas Plants Landscaping Region by Region, 1991, pg. 2002. 4) https://www.wildflower.org/plants/result.php?id_plant=PETR2. 5) http://bonap.net/TDC/Image/Map?taxonType=Species&taxonId=17289&locationType=County&mapType=Normal. 6) https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=34005#null, 7) Native and Adapted Landscape Plants, City of Austin and Texas A&M, 2014.