rock penstemon · Temperature

rock penstemon · Penstemon rupicola
Also known as: cliff beardtongue

Grow in poor to moderately fertile, very gritty, well-drained soil in full sun. The plant illustrated here is the cultivar 'Diamond Lake'

Watering: Allow full drying between waterings, provide sharp drainageSunlight: Full sun · Partial shadeInformation to be completed