Wasatch Penstemon
Penstemon cyananthus

Family: Plantaginaceae
Genus: Penstemon (PEN-stem-on) (Info)
Species: cyananthus (SY-an-an-thus) (Info)

Category:

Alpines and Rock Gardens

Perennials

Height:

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

Spacing:

18-24 in. (45-60 cm)

Hardiness:

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)

Sun Exposure:

Full Sun

Danger:

N/A

Bloom Color:

Medium Blue

Bloom Time:

Mid Spring

Foliage:

Deciduous

Smooth-Textured

Other details:

Drought-tolerant; suitable for xeriscaping

Soil pH requirements:

Unknown - Tell us

Patent Information:

Non-patented

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

Seed Collecting:

Unknown - Tell us

Regional

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

Colorado Springs, Colorado

Beatrice, Nebraska

Sparks, Nevada

Riverton, Utah

Salt Lake City, Utah

Sandy, Utah

Santaquin, Utah

Vancouver, Washington

show all

Gardeners' Notes:

2
positives
1
neutral
0
negatives
RatingContent
Neutral

On Apr 21, 2013, Nejacobs from New Hempstead, NY wrote:

A couple years ago, I saw this plant in a garden in upstate NY, but was unable to find out what it was. I only gave up looking for it last month and am SO HAPPY to see that you've showcased it! Now I know what to call it (cyananthus, gosh, what else COULD IT HAVE BEEN CALLED!?) so I can look around for it on the Internet !

Positive

On Oct 6, 2009, BajaBlue from Rancho Santa Rita, TX (Zone 8a) wrote:

A real beauty. Rich blue flowers on spikes from 1-3' above mat of green basal leaves. Sun to part shade, well-drained soil. Hardy to -20 degrees F. Northern Rocky Mountains native.





Positive

On May 9, 2005, nevadagdn from Sparks, NV (Zone 7a) wrote:

I can't be completely certain how low the hardiness range for this plant might be, but it overwinters nicely in my Zone 7a garden. It would qualify as xeric in most areas, although I have it in rocks over sandy clay and give it additional water during the growing season here in arid Nevada.

The flowers are absolutely, undeniably, brilliantly BLUE.