Rocky Mountain Beardtongue (Penstemon strictus) in the Penstemons Database

General Plant Information (Edit)
Plant Habit:	Herb/Forb
Life cycle:	Perennial
Sun Requirements:	Full Sun
Minimum cold hardiness:	Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone:	Zone 9b
Plant Height:	18 - 24 inches
Plant Spread:	12 - 18 inches
Leaves:	Unusual foliage color Semi-evergreen
Flowers:	Showy
Flower Color:	Purple
Bloom Size:	Under 1"
Flower Time:	Late spring or early summer
Underground structures:	Taproot
Suitable Locations:	Xeriscapic
Uses:	Will Naturalize
Wildlife Attractant:	Bees Hummingbirds
Propagation: Seeds:	Stratify seeds: 3 months at 40 degrees

Common names

Photo Gallery

$Location: Denver Metro CO Date: 2013-08-01 You can see into the \"throat\" of this penstemon$

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Comments:

Posted by jvdubb (48036 MI - Zone 6b) on Aug 24, 2014 6:15 PM concerning plant:

My mom grew this penstemon from seed for me five years ago. It started with a bang and has continued every year since with a bang! Next year I am going to have to downsize it as it has taken over quite a large area. I find the blooms have an almost iridescent quality. My only complaint about this flower is that it only blooms in spring. It is so pretty I wish it would go all summer long!

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Posted by Skiekitty (Denver Metro - Zone 5a) on Aug 1, 2013 11:17 AM concerning plant:

I dug this penstemon from my mom's property in the Southern NM mountains (Sacramento Mountains) and brought it home to Colorado in '10. I planted it, watered it, and it "died." The following year it sprouted, but it never bloomed. In 2012 it bloomed for the first time. This year (2013), it's been blooming almost constantly for over 2 months. It gets pretty tall, about 3.5 ft. Hummingbirds, however, don't seem to like it as much as the agastaches next to it. I've found that the stems get "topheavy" and will topple over from the blooms.

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Posted by SunnyBorders (Aurora, Ontario - Zone 5b) on Apr 16, 2013 2:23 PM concerning plant:

Long-lived, which is unusual for most penstemons I've tried here.

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Plant Events from our members
chelle	On February 26, 2015	Potted up Unsure about this ID. (5) two-finger paper
chelle	From February 16, 2015 to February 21, 2015	Seeds germinated Room temp. - no cold treatment required.
chelle	On February 15, 2015	Seeds sown Unsure about this ID. Indoors to start with, but may need approx. 8 wks. cold. GA3 used.
MrsBinWY	On January 6, 2019	Seeds sown WS eight (8x5) 2.25" pots, seeds from 2017G
MrsBinWY	On November 25, 2017	Seeds sown Experiment: Eight (8) 2.25" pots in garden hoop, seeds from 2017G
lovesblooms	On March 1, 2020	Seeds sown winter sow
lovesblooms	On January 15, 2017	Seeds sown w/s
lovesblooms	On March 23, 2016	Seeds germinated
lovesblooms	On March 5, 2016	Seeds sown indoors

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Penstemons Rocky Mountain Beardtongue (Penstemon strictus)