PlantsVeronicas→Large Speedwell (Veronica teucrium 'Crater Lake Blue')

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Common names:
Give a thumbs up Large Speedwell
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Botanical names:
Veronica teucrium Accepted
Veronica austriaca subsp. teucrium Synonym

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Plant Height: 18 to 24 inches (45-60cm)
Plant Spread: 9 to 12 inches (23-30cm)
Flowers: Showy
Flower Color: Other: Gentian blue
Flower Time: Late spring or early summer
Wildlife Attractant: Butterflies
Resistances: Deer Resistant

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Photo gallery:
Date: 2017-05-22
By Fleur569
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Location: Indiana  zone 5Date: 2016-05-18
By gardengus
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By kosk0025
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Location: Breezy Knees garden, York, UKDate: 2020-06-20
By kniphofia
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Location: My garden in KentuckyDate: May 18, 2008 5:31 PM
By Marilyn
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Location: My garden in KentuckyDate: May 18, 2008 5:30 PM
By Marilyn
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Location: My garden in KentuckyDate: May 18, 2008 5:08 PM
By Marilyn
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Location: In my garden in Kalama, Wa. Zone 8bDate: 2012-05-30
By Joy
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Location: Manitoba, CanadaDate: 2015-06-21
By DebbieC
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Location: Breezy Knees garden, York, UKDate: 2020-06-20
By kniphofia
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Courtesy Crownsville Nursery
By vic
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Courtesy Crownsville Nursery
By vic
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This plant is tagged in:
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Comments:
Posted by jvdubb (48036 MI - Zone 6b) on Aug 27, 2014 7:30 PM

It is a shame that this Veronica only blooms in the spring! Its explosive blue blooms are like an official announcement that a new growing season has begun. I also enjoy how the ground around the plant turns blue as the blooms fade and drop.

In both zone 5 and zone 6, this plant has grown vigorously for me. I use 12 inch tall border fencing to make cages for my 'Crater Lake Blue' because it can be quite floppy. It grows to hide the cage very quickly. I cut it back by about 4 inches after it blooms. Sadly, it has never rebloomed for me.

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Posted by Marilyn (Kentucky - Zone 6a) on Aug 27, 2014 3:01 PM

'Crater Lake Blue' is so beautiful, it's a must-have plant. Even if it only blooms for a very short time, the color of the blue makes up for it. It is a gem in the spring garden. The flowers shine and glow in the sun.

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Plant Events from our members
SCButtercup On May 6, 2018 Plant Ended (Removed, Died, Discarded, etc)
SCButtercup On May 1, 2015 Bloomed
gardengus On May 16, 2016 Bloomed
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Discussion Threads about this plant
Thread Title Last Reply Replies
Banner for March 4, 2019 by Marilyn by Marilyn May 6, 2019 12:38 AM 7
Banner for July 14, 2017 by Fleur569 by Fleur569 Jul 14, 2017 6:11 PM 10
Bloom Season 2016 - Part 2 by Lestv Jan 21, 2019 9:53 PM 1,323
Blooming by flowersrjen Jul 5, 2021 10:03 AM 4,604
May flowers by Bonehead May 31, 2013 4:16 PM 112

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