Broadbeard Beardtongue (Angustifolius) is generally described as
a perennial subshrub or forb/herb.
native to the U.S. (United States)
has its most active growth period in the
spring and summer .
Broadbeard Beardtongue (Angustifolius) has
green foliage and
white flowers, with
an abuncance of
conspicuous purple fruits or seeds.
The greatest bloom is usually observed in the
with fruit and seed production starting in the
summer and continuing until
not retained year to year.
Broadbeard Beardtongue (Angustifolius) has a
short life span relative to most other plant species and a
rapid growth rate.
At maturity, the typical
Broadbeard Beardtongue (Angustifolius) will reach up to
3 feet high, with a maximum height at 20 years of
Broadbeard Beardtongue (Angustifolius) is not commonly available from nurseries, garden stores and other plant dealers and distributors. It can be propagated by
bare root, container, cuttings, seed.
It has a
rapid ability to spread through seed production and the seedlings have
Note that cold stratification is
not required for seed germination and the plant cannot survive exposure to temperatures below
high tolerance to drought and restricted water conditions.
Uses of : Landscaping, Medicinal, Culinary, etc.
Erosion control: Narrow leaf penstemon is a drought tolerant forb. It is helpful in preventing wind erosion on sandy dunes, plains and grasslands where it establishes.
Wildlife: Narrow leaf penstemon provides a food source to small birds and mammals. It is heavily used by hummingbirds and various insects during flowering.
Urban: Narrow leaf penstemon is a drought tolerant forb that also produces beautiful flowers in early spring. This makes it an ideal plant for xeriscaping.
Penstemon angustifolius Nutt. ex. Pursh., narrow leaf penstemon, is native to various western and plains states. It is a stout, smooth, waxy, gray green perennial herb. The plant grows from 8 to 24 inches with several stout, erect or somewhat curving stems. The flowers range from ½ to ¾ inch and are various shades of violet and pink. Insect guidelines may or may not be present
Required Growing Conditions
Narrow leaf penstemon is found throughout the western and Great Plains states. It is adapted to sandy mesas and grasslands and is frequently found on dunes. It does poorly and is short lived when planted in heavy soils.
Narrow leaf penstemon is distributed throughout the United States.
Cultivation and Care
The seed of narrow leaf penstemon requires cold stratification for germination. Approximately 85% of the seed are dormant. Total germination averages above 90%. Field plantings of this seed should be done in the fall. Seeding should be at approximately 12 seed per foot. With adequate winter moisture or supplemental irrigation, stands are generally good.
General Upkeep and Control
After stand establishment, it is important to limit irrigation. In normal years with 8-10 inches of precipitation, no irrigation is necessary. Narrow leaf penstemon is extremely sensitive to root rot fungi and if overwatered the entire stand will be destroyed.
Although not necessary, narrow leaf penstemon responds well to fertilization. After establishment, it does not appear to be damaged by the use of pre-emergent herbicides. After harvest the plants soon become dormant and may then be mowed.
Cultivars, Improved, and Selected Materials (and area of origin) San Juan Germplasm narrowleaf penstemon (New Mexico) is a selected class (pre-varietal) release from the Los Lunas Plant Materials Center and the New Mexico State University Agricultural Science Center in Los Lunas, New Mexico. Seed may be obtained through the New Mexico Crop Improvement Association. The plant is adapted to areas with annual precipitation of 6 to 10 inches, and has a variety of purposes. It helps prevent erosion on the sandy dunes, plains, and grasslands where it establishes. The beautiful flowers it produces in the early spring make it useful for xeriscaping. The seed of narrowleaf penstemon provides a food source to small birds and mammals. The flowers are particularly important in providing early forage for honeybees. Hummingbirds and various insects also rely heavily on the flowers in the early spring.
Source: USDA, NRCS, PLANTS Database, plants.usda.gov.
National Plant Data Center, Baton Rouge, LA 70874-4490 USA