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PlantFiles: Alamo Beardtongue, Los Alamos Beardtongue, Alamo Canyon Beardtongue
Penstemon alamosensis

Family: Plantaginaceae
Genus: Penstemon (PEN-stem-on) (Info)
Species: alamosensis

2 members have or want this plant for trade.


24-36 in. (60-90 cm)

18-24 in. (45-60 cm)

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:
Scarlet (Dark Red)

Bloom Time:
Mid Summer


Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:

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; stratify if sowing indoors

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive BajaBlue On Jul 15, 2009, BajaBlue from Rancho Santa Rita, TX (Zone 8a) wrote:

24-36 x 8 wide, (seed propagated). This is one of my favorite Beardtongues with its extravagant, often twisting spikes of scarlet
to coral-orange flowers over gray-blue, evergreen foliage. Propagated from garden cultivated seeds, this rare wildflower from the mountains of southeast NM is the gem of any collectors

Alamo Canyon Beardtongue thrives in lean, very fast draining non-clay soil. Limestone derived soils are particularly favorable.

USDA Growing Zones 5 - 9
Color Coral to Orange to Scarlet
Regions Hot Desert, Western Only
Rain Less than 10in., 10in - 20in
Bloom Time Late Spring
Sun Full and Afternoon Sun
Soil Sandy Garden Soil, loves limetone
Moisture Xeric
Height Medium - 12in. to 36in.
Plants for Pollinators Attract Hummingbirds
Resistant to Hungry Critters
Resists Deer, Resists Rabbits

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