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Beardtongue, Beard Tongue 'Rondo Mix'

Penstemon barbatus

Family: Plantaginaceae
Genus: Penstemon (PEN-stem-on) (Info)
Species: barbatus (bar-BAY-tus) (Info)
Cultivar: Rondo Mix



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


9-12 in. (22-30 cm)


USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

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


Unknown - Tell us

Bloom Color:


Magenta (Pink-Purple)

Fuchsia (Red-Purple)

Dark Blue



Bloom Time:

Mid Summer



Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:


Propagation Methods:

Unknown - Tell us

Seed Collecting:

Bag seedheads to capture ripening seed


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

Chuichu, Arizona

North Fork, California

Colorado Springs, Colorado

Hotchkiss, Colorado

Augusta, Georgia

Boise, Idaho

Chicago, Illinois

Gridley, Illinois

Swansea, Massachusetts

Hopkins, Minnesota

Saint Paul, Minnesota

Albuquerque, New Mexico (2 reports)

Defiance, Ohio

Norristown, Pennsylvania

Renfrew, Pennsylvania

Kalama, Washington

Ellsworth, Wisconsin

Menasha, Wisconsin

Watertown, Wisconsin

show all

Gardeners' Notes:


On Apr 20, 2012, rosiesgarden2001 from Gridley, IL wrote:

most penstemon are short lived perennials even where zone hardy; it is so easy to keep them going when you allow some seed to ripen and scratch it in beside the parent. they do rebloom well if deadheaded. i grow on western slope, mix pebbles and moisture plus polymers just under roots, it reduces watering that 1st yr,and they can't drown. i use moisture polymers under all my plants now, and operate as a drought garden except for new plants. don't put mulch close to stems of penstemon--rot., or overwater. drainage essential. be sure to check for zone hardiness. in the case of penstemon,figure 1 zone further N than the chart reads.i love all the varieties of pen., husker red the least, it is a bit boring, but all U of Neb varieties very long lived and reliable.


On Jun 16, 2011, ms_greenjeans from Hopkins, MN (Zone 4a) wrote:

I'm a penstemon fan, even though they are short-lived. I have had pretty good luck with Husker Red if I divide and replant about every other year. I just planted Rondo Mix last year, and it is flowering nicely right now. I got a good mix of pastel colors, and it's very pretty. Hopefully I can keep these going with a similar strategy.


On Jul 28, 2010, suewylan from North Fork, CA (Zone 7b) wrote:

Here in the Sierra Foothills, these started out well and bloomed nicely. After 4 years only one of twelve is left, so I'd say this is a shorted lived perennial here. I'd definitely get it again.


On Jun 27, 2009, art_n_garden from Colorado Springs, CO (Zone 6a) wrote:

'Rondo Mix' is probably my favorite penstemon out of probably 20 varieties I grow- maybe one of the top 10 perennials I grow. It is stout and solid looking, and I agree it does not flop like other penstemons have the tendency to do. I have two different varieties of color - a deep blue/purple and a deep light pink. Both are long blooming and stand out among other flowers.
I have had ease and success at starting them from seed indoors in the winter, and they tend to bloom the first year from seed.


On Jan 28, 2006, Gabrielle from (Zone 5a) wrote:

Plentiful flowers on short, sturdy stalks. 'Rondo Mix' does not have the tendency to flop as some other varities of Penstemon barbatus do. One of my favorite Penstemons. Stratification aids germination of seeds. They will rebloom if deadheaded.


On Dec 10, 2005, bigcityal from Menasha, WI (Zone 5a) wrote:

This plant doesn't seem to flower as much and look as nice as the "Husker Red" , but it has some colored flowers.