Dark Towers Beardtongue (Penstemon)

Penstemon ‘Dark Towers’ is a named selection with upright stems, glossy bronze-red to purple foliage and pink flowers. University of Nebraska breeder Dale Lindgren selected this form; Terra Nova’s exact profile lists patent PP20013, EU27485, USDA zones 3–8 and mature dimensions of 33 inches tall by 30 inches wide. ## Garden Use Pink flowers appear in July and August above the dark leaves, creating contrast in mixed borders and foliage-focused plantings. The stems are also suitable for cutting, and the flowers attract pollinators. The [Terra Nova plant profile](https://www.terranovanurseries.com/product/penstemon-dark-towers/) documents the selection, bloom season, color, size and hardiness range. ## Growing Conditions Plant in full sun and well-drained soil. The breeder recommends average garden water; water regularly while the plant establishes, then avoid keeping the root zone saturated. Its dark foliage makes a strong background for lighter flowers and silver or green leaves. ## Maintenance Remove old stems as new growth begins in spring. Leave healthy foliage through the season and cut flower stems after blooming if seed production is not wanted.