PlantFiles is getting a new look! Just in time for spring, we're rolling out a new look for the best online plants database. It will also work with your smart phones and mobile devices, so now you can take it with you on garden center visits or botanical garden tours. Questions or comments? Please post them here.

Border Penstemon, Beardtongue, Beard Tongue
Penstemon gloxinoides

Family: Plantaginaceae
Genus: Penstemon (PEN-stem-on) (Info)
Species: gloxinoides (gloks-in-OY-deez) (Info)




24-36 in. (60-90 cm)

36-48 in. (90-120 cm)


18-24 in. (45-60 cm)


USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun

Sun to Partial Shade


Unknown - Tell us

Bloom Color:


Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall

Late Fall/Early Winter



Other details:

This plant is attractive to bees, butterflies and/or birds

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

Unknown - Tell us

Patent Information:


Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us


This plant has been said to grow in the following regions:

Antioch, California

Clayton, California

Paradise, California

Sacramento, California

Sherman Oaks, California

Stockton, California

Bessemer City, North Carolina

Portland, Oregon

Kalama, Washington

Vancouver, Washington

show all

Gardeners' Notes:


On Aug 21, 2009, lehua_mc from Portland, OR (Zone 8b) wrote:

This Ed Hume Sensation Mixed Colors seed mix took a while to get going in the spring, but hit their stride in mid summer, filling out and flowering as a vigorous wonder. Popular with hummingbirds, now in October, the plant is looking unfazed by the increasingly tumultuous weather, which heartens me for their sake. Knowing more about Penstemon, however, I might not have chosen this particular cultivar, for its almost gaudy flower colors. Last update: this page claims it's hardy to -30, but my bumper crop of them are all decimated after a winter that went into the teens and single digits. The trimmed back stumps have no roots, and no seedlings around them.