Cobaea penstemon (Penstemon cobaea) in the Penstemons Database

Common names:
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Give a thumbs up Large-flowered penstemon
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General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Plant Height: 18 - 24 inches
Plant Spread: 12 - 18 inches
Leaves: Unusual foliage color
Semi-evergreen
Flowers: Showy
Flower Color: White
Bloom Size: 1"-2"
Flower Time: Spring
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

Has this labeled as P. cobaea. Maybe a cultivar or variety that's

Photo gallery:
Location: ILDate: 2019-06-23Has this labeled as P. cobaea. Maybe a cultivar or variety that's
By molanic
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Location: ILDate: 2019-06-23
By molanic
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Location: Illinois, USDate: 2018-06-16
By molanic
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Location: north central TexasDate: April or May, year unknown
By needrain
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Location: Molly Hollar Wildscape Arlington, Texas.Date: 2012-04-27Close up of flower.
By frostweed
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Location: ILDate: 2019-06-23
By molanic
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Location: Illinois, USDate: 2018-06-16
By molanic
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Location: Medina Co., TexasDate: April 4, 2012Wild Foxglove
By LindaTX8
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Location: Molly Hollar Wildscape Arlington, Texas.Date: 2012-04-27A lovely group of plants.
By frostweed
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Location: Molly Hollar Wildscape Arlington, Texas.Date: 2012-04-27Growing in the prairie.
By frostweed
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Location: Illinois, USDate: 2018-06-16
By molanic
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Plant Events from our members
lovesblooms On January 28, 2017 Seeds sown
w/s
lovesblooms On January 28, 2017 Seeds sown
w/s
MrsBinWY On January 5, 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
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
Penstemon problem. by LolaTasmania Oct 20, 2019 6:02 AM 3
Large-flowered Beardtongue (Penstemon grandiflorus) by Anderwood Jun 6, 2015 9:46 PM 4
Penstemon cobaea; photo credit Monika Maeckle-Texasbutterflyranch.com by Bubbles Apr 28, 2015 11:49 AM 4
What's caught your eye? ---Photos 2014 by dirtdorphins Nov 20, 2016 4:45 PM 72
Plant ID please! by sarahbugw Apr 22, 2014 7:35 PM 6
First wintersown sprouts! by kqcrna May 13, 2014 8:49 PM 50
Seed sowing 2014 by kqcrna Feb 10, 2014 12:13 PM 107
What is this flower? by greene Aug 15, 2013 9:59 PM 21
Are you sowing any new wildflowers this year? by SongofJoy Feb 17, 2013 1:41 PM 8
Anyone suggestions for extending the viability of onion seeds? by woofie Jan 31, 2012 12:06 PM 31

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