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PlantFiles: Beardtongue, Beard Tongue, Penstemon
Penstemon x mexicali 'Sunburst Ruby'

Family: Plantaginaceae
Genus: Penstemon (PEN-stem-on) (Info)
Species: x mexicali (meks-ih-KAL-ee) (Info)
Cultivar: Sunburst Ruby

One vendor has this plant for sale.

3 members have or want this plant for trade.

Alpines and Rock Gardens

12-18 in. (30-45 cm)

6-9 in. (15-22 cm)
9-12 in. (22-30 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)

Sun Exposure:
Full Sun
Sun to Partial Shade

Unknown - Tell us

Bloom Color:
Fuchsia (Red-Purple)

Bloom Time:
Late Spring/Early Summer
Mid Summer


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
Flowers are good for cutting

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
From herbaceous stem cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By EstelleMirage
Thumbnail #1 of Penstemon x mexicali by EstelleMirage

By mehitabel45
Thumbnail #2 of Penstemon x mexicali by mehitabel45

By mehitabel45
Thumbnail #3 of Penstemon x mexicali by mehitabel45


1 positive
No neutrals
1 negative

Gardeners' Notes:

Positive mehitabel45 On Sep 3, 2011, mehitabel45 from Whidbey Island, WA (Zone 8b) wrote:

What a pleasant surprise!
I planted a small pot of this last fall, just before an 18 degree freeze. It died back, but this summer, it came back beautifully. Perhaps 12"-15" in diameter, and about 18" tall, it bloomed from June through August, and is just slowing down now.
Everyone should have this very lovely deep pink color in their garden.

Update: It's her third summer, and she's 2.5 feet wide. Ignore the spacing above. Still a stunning plant. Blooms until late fall if pruned and happy. It would make a nice low hedge in 3 year's time. Mine's about 2.5 feet tall, too.

Negative Malus2006 On Jun 5, 2010, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:

Didn't last past its first winter - could be not enough sun or too much moisture.


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

Minneapolis, Minnesota
Norristown, Pennsylvania
Leesburg, Virginia
Freeland, Washington
Kalama, Washington

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