Botanical Name: Penstemon heterophyllus var. australis
Common Name: Foothill penstemon, Foothill beardtongue
Type of Plant: dicot: perennial
Character
Habit of Growth:
Overall Shape upright, spreading, rangy plant with narrow blue-green foliage
and pink to purple, fine-textured flowers held above
Height to 2'
Spread 3' to 4'
Growth Rate moderate
Environment:
Exposure outdoors: full sun
Soil prefers fast-draining soils
Hardiness hardy; zones 7-24
Morphology:
Leaves linear to narrowly lanceolate leaves to 3" long, 1/8"
across, oppositely arranged; leaves are distinctly blue-green to gray in color
Flowers small, tubular flowers to 1/2" long, 1/8" across; set in pink
to purple pikes; blooms spring and early summer
Fruit capsule with many seeds
Propagation:
stem cuttings
Usage:
good mixed in perennial borders, with other California natives
and for a source of pink to purple color in the landscape; plants are short-lived
when receiving regular watering, longer lived in dry areas
Landscape Care:
Watering regular watering when first planted, benefitting from drier
conditions after established; excellent drainage is essential for longest life
Fertilizing generally none required
Pruning head back after bloom to stimulate second bloom in summer
Pests/Diseases root rot in heavy soils
Special Conditions
Other
Origin: California
Family: Scrophulariaceae
Notes:
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