6 to 10 in.
12 to 15 in.
species is native to New Mexico and Arizona
USDA zones 4-9
hardy to 8,000 ft.
Yellow pineleaf penstemon is grown for its beautiful yellow flowers. It is an English selection of the flowering subshrub native to New Mexico and Arizona.
It grows as a small mound of needle-like leaves. In June, many small yellow flowers with a slender funnel-shape bloom for several weeks. The leaves stay more green than red pineleaf penstemon, which make it a more attractive plant when it's not in bloom.
Yellow pineleaf penstemon has grown at the Xeriscape Demonstration Garden for many years. It performs well in sunny dry locations. Plants that have become overly woody over time benefit from hard pruning every few years.
Cut down brown stems to green growth in early spring before new growth starts. Cut back the stems of the spent flowers after bloom to a set of attractive leaves, if desired.