Penstemon digitalis is a clump-forming, Missouri-native perennial which typically grows 3-5' tall and occurs in prairies, fields, wood margins, open woods and along railroad tracks. Features white, two-lipped, tubular flowers (to 1.25" long) borne in panicles atop erect, rigid stems.
Penstemon Digitalis Care
Penstemon Digitalis
What is the plant
humidity
High
lighting
Full Sun
hardiness zone
3 - 8
difficulty
Easy
hibernation
Cold Period
How to Care for the Plant
Water
Although not as drought tolerant as cactus, many species do grow well in desert-like climates.
Pruning
Deadheading to remove dried stalks in fall will allow the lovely purplish rosettes to function as a winter groundcover. Penstemons need little pruning, but removing the stems after flowering is complete will often promote new foliage growth and a second flush of blooms. Deadheading will also prolong flowering, but be sure to leave a few seed heads on the stalks toward the end of the season so your plants can reseed.
Fertilizer
Fertilize lightly when planting and then never again. Over fertilizing Penstemons leads to excessive die back in the winter.
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Sunlight
Prefers full sun to part shade such as clearings within forests, woods' edges, and savannas. It is very easy to grow from seed.
Soil
Most penstemon prefer fertile, well-drained soil.
Temperature
Ideal temperatures should be approximately 65-75ºF + (18-24ºC +), closer to 70ºF is best.
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