Penstemon heterophyllus
has a long blooming season and is quite variable in the leaf habit and
flower shape. Foothill Penstemon is quite drought tolerant once
established. Butterflies and hummingbirds are attracted to the
flowers. Penstemon heterophyllus grows in full sun, often in
disturbed firebreaks and trail margins. Foothill Penstemon
requires decent drainage and Summer dry periods. Penstemon
heterophyllus is Winter hardy into single digits.