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PlantFiles: Penstemon
Penstemon 'Dark Towers'

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Family: Plantaginaceae
Genus: Penstemon (PEN-stem-on) (Info)
Cultivar: Dark Towers
Additional cultivar information: (PP20013)
Hybridized by Lindgren; Year of Registration or Introduction: 2007

6 vendors have this plant for sale.

8 members have or want this plant for trade.

Category:
Perennials

Height:
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Spacing:
15-18 in. (38-45 cm)

Hardiness:
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)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
N/A

Bloom Color:
Pink

Bloom Time:
Late Spring/Early Summer
Mid Summer

Foliage:
Burgundy

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater

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:
Patented

Propagation Methods:
By dividing the rootball
From softwood cuttings

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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Thumbnail #1 of Penstemon  by turektaylor

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Thumbnail #5 of Penstemon  by ngam

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Thumbnail #6 of Penstemon  by northgrass

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Thumbnail #7 of Penstemon  by growin

There are a total of 20 photos.
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Profile:

3 positives
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive ms_greenjeans On Jul 9, 2012, ms_greenjeans from Hopkins, MN (Zone 4a) wrote:

This is a lovely variety of penstemon. The foliage is very dark and glossy. It has a strong upright habit and long bloom period. The flowers are white, or nearly white, with a lavender blush. Quite pretty.

Positive myncgarden On Jun 4, 2012, myncgarden from Zirconia, NC wrote:

Second year, and only two plants, but they are both large and beautiful and look quite striking in the perennial border. Great dark burgundy foliage, stands out beautifully against a green backdrop; pale pink/white tinged flower. Plants are growing strong so far, getting about 5-6 hours of sun; no staking has been required. Each plant is about 3 ft tall and about half as wide and each one holds its own in a border where other perennials (agastache, coneflower, coreopsis, etc) are in large groupings. So far I highly recommend it.

Positive northgrass On Jul 20, 2010, northgrass from West Chazy, NY (Zone 4b) wrote:

This plant is about 30 inches high, gets sun most of the day. It is its second year in my garden and looking good all season.

Regional...

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

Cornwall Bridge, Connecticut
Cherry Valley, Illinois
Washington, Illinois
Rising Sun, Maryland
Norton, Massachusetts
Hopkins, Minnesota
Kasota, Minnesota
Saint Paul, Minnesota
Randolph, New Jersey
Apex, North Carolina
Elizabeth City, North Carolina
Zirconia, North Carolina
Amherst, Ohio
Lansdowne, Pennsylvania
Rockvale, Tennessee
Garland, Texas
Kalama, Washington



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