Heucheras forum: Heuchera Trials 2012 - 2014

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7A (Zone 7a)
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dormantsrule
Feb 18, 2013 10:29 AM CST
Interim ratings for 2012 are posted:

"Some of the top rated Heuchera cultivars of 2012 include 'Apple Crisp', 'Berry Smoothie', 'Berry Marmalade', 'Cajun Fire', 'Purple Petticoats', 'Dale's Strain', 'Obsidian', 'Guardian Angel', and 'Spellbound'...."

Rating System

Our numerical rating system ranges from one to five and can be interpreted as follows:

1. Poor
2. Below Average
3. Average
4. Good
5. Excellent

Ratings are made during weekly observations. The following rubric is used in assigning ratings for overall plant health and appearance.

1. Dying or near death.
2. Very open habit or damage on more than 25% of foliage.
3. Slightly open habit and may have a small amount of damaged foliage.
4. Vigorous and healthy, with a habit that is dense but not perfectly uniform.
5. Habit is perfectly dense and mounding. No disease or foliage problems.

The following rubric is used when assigning ratings for floral display.

1. Inconspicuous flowers. Display is unattractive and would be best if removed.
3. Floral display does not detract from the aesthetic appeal.
Flowers are not proportional to plant size or do not compliment foliage color.
5. Flowers are numerous and complimentary to the foliage color.
Floral display is attractive and can be thought of as a selling point.

The following rubric is used when assigning ratings for sun tolerance.

1. Majority of foliage is burnt. Poor growth/vigor.
2. Moderate foliage burning, slight bleaching or burning on new growth.
3. Leaf discoloration/bleaching and small burnt spots or leaf margins.
4. Mild discoloration/bleaching. Slight sun damage on lower leaves only.
5. No sun damage. Looks similar to plants grown in shade.


http://www.mtcubacenter.org/pl...
Photo used in avatar purchased on istockphoto.com
[Last edited by dormantsrule - Feb 18, 2013 5:57 PM (+)]
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Name: Chris
Ripon, Wisconsin
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Forum moderator Garden Ideas: Master Level Plant Database Moderator
Seller of Garden Stuff I sent a postcard to Randy! Sempervivums Sedums Region: Wisconsin Hosted a Not-A-Raffle-Raffle
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goldfinch4
Feb 18, 2013 11:25 AM CST
Thanks for the update. This is really interesting and some good information to keep on hand!
Cubits Store: The Sempervivum Patch - plants, containers, accessories!
Also stop by Timber Treasures and Garden Buddies on Cubits
Name: Carolyn Madden
Pennsylvania
Charter ATP Member The WITWIT Badge I was one of the first 300 contributors to the plant database! Dog Lover Plant and/or Seed Trader Daylilies
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Carolyn22
Feb 18, 2013 4:43 PM CST
Great information - I bookmarked it.

Thanks so much.
Name: Bob
Vernon N.J. (Zone 6a)
Charter ATP Member Plant Database Moderator I was one of the first 300 contributors to the plant database! Forum moderator Heucheras Echinacea
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NJBob
Feb 18, 2013 6:28 PM CST

Moderator

Thanks for the info. It will be interesting to see the results after the 3 years. Many of the ones they have highly rated have been very bad performers for me. Look good first year and do not overwinter and some they have not so highly rated I have for years.
Name: Julia
Washington State (Zone 7a)
Photo Contest Winner 2018 Garden Photography Region: Pacific Northwest Celebrating Gardening: 2015 Forum moderator Plant Database Moderator
I was one of the first 300 contributors to the plant database! Dog Lover Sempervivums Container Gardener Foliage Fan Greenhouse
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springcolor
Feb 18, 2013 6:44 PM CST

Moderator

I agree Bob. Apple Crisp is suscepible to heuchera rust in my garden. The tides may turn as the years pass. This is for the Atlantic states so not good info for me.
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Name: Bob
Vernon N.J. (Zone 6a)
Charter ATP Member Plant Database Moderator I was one of the first 300 contributors to the plant database! Forum moderator Heucheras Echinacea
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NJBob
Feb 18, 2013 8:41 PM CST

Moderator

I found the whole Crisp series to be problems along with the Marmalades.None of them overwintered here, and I tried more then once
7A (Zone 7a)
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dormantsrule
Oct 12, 2013 10:12 AM CST
Disease Update
From: http://www.mtcubacenter.org/im...


As a group, the Heuchera cultivars in our trial have performed exceedingly well- that is until now. The wet weather this summer proved to be more than some Heuchera could handle. From a total of 87 selections being evaluated, 19 cultivars suffered with a range of symptoms, from moderate defoliation to death. The main pathogen causing these losses was Phytophthora, of which there are several species.

Another disease we came across this summer was a Cercospora leaf spot. This fungus is specific to Heuchera and having so many in one place most likely amplified its presence. The symptoms are small lesions on the leaf surface which can detract from the quality of the foliage, but generally only when viewed up close. As the weather improved, the disease diminished and infected leaves were removed. No lasting damage was done to the plants.

Photo used in avatar purchased on istockphoto.com
[Last edited by dormantsrule - Oct 13, 2013 11:26 AM (+)]
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Name: Julia
Washington State (Zone 7a)
Photo Contest Winner 2018 Garden Photography Region: Pacific Northwest Celebrating Gardening: 2015 Forum moderator Plant Database Moderator
I was one of the first 300 contributors to the plant database! Dog Lover Sempervivums Container Gardener Foliage Fan Greenhouse
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springcolor
Oct 12, 2013 10:55 AM CST

Moderator

Interesting. I wonder which ones died? My spring weather is always wet and damp so good for the testing.
Sempervivum for Sale
7A (Zone 7a)
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dormantsrule
Oct 12, 2013 7:50 PM CST
springcolor said: ...I wonder which ones died? . .


I am hoping they will be mentioned in a yearly evaluation report.
Photo used in avatar purchased on istockphoto.com
Name: Julia
Washington State (Zone 7a)
Photo Contest Winner 2018 Garden Photography Region: Pacific Northwest Celebrating Gardening: 2015 Forum moderator Plant Database Moderator
I was one of the first 300 contributors to the plant database! Dog Lover Sempervivums Container Gardener Foliage Fan Greenhouse
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springcolor
Oct 12, 2013 7:53 PM CST

Moderator

Yes, that would be good. Thanks for keeping us posted.
Sempervivum for Sale
Name: Carolyn Madden
Pennsylvania
Charter ATP Member The WITWIT Badge I was one of the first 300 contributors to the plant database! Dog Lover Plant and/or Seed Trader Daylilies
Bulbs Purslane Lover of wildlife (Black bear badge) Hummingbirder Clematis Cat Lover
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Carolyn22
Oct 13, 2013 11:34 AM CST
I would be interested in knowing which varieties succumbed. I am wondering if there is a link to specific types.
Name: Lyn
Weaverville, California (Zone 8a)
Garden Ideas: Level 1 Garden Sages Celebrating Gardening: 2015
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RoseBlush1
Oct 13, 2013 8:43 PM CST
Cercospora leaf spot is not necessarily specific to Heucheras.

http://en.wikipedia.org/wiki/C...

Cercospora rosicola is often found on roses. Many gardeners mistakenly identify what they are seeing as blackspot, including me Whistling

Smiles,
Lyn

I'd rather weed than dust ... the weeds stay gone longer.
7A (Zone 7a)
Garden Ideas: Level 1 Avid Green Pages Reviewer
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dormantsrule
Dec 11, 2014 8:29 PM CST
Mt Cuba Trial Garden Report - Heuchera in the Mid Alantic.

http://www.mtcubacenter.org/ho...
Photo used in avatar purchased on istockphoto.com
Name: Julia
Washington State (Zone 7a)
Photo Contest Winner 2018 Garden Photography Region: Pacific Northwest Celebrating Gardening: 2015 Forum moderator Plant Database Moderator
I was one of the first 300 contributors to the plant database! Dog Lover Sempervivums Container Gardener Foliage Fan Greenhouse
Image
springcolor
Dec 11, 2014 8:40 PM CST

Moderator

Thank you for posting this.
Sempervivum for Sale
7A (Zone 7a)
Garden Ideas: Level 1 Avid Green Pages Reviewer
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dormantsrule
Dec 12, 2014 10:29 AM CST
springcolor said:Thank you for posting this.


Most welcome. Have contractor running in and out so maybe have chance to read this weekend.

Photo used in avatar purchased on istockphoto.com
Name: Bob
Vernon N.J. (Zone 6a)
Charter ATP Member Plant Database Moderator I was one of the first 300 contributors to the plant database! Forum moderator Heucheras Echinacea
Hellebores The WITWIT Badge Dog Lover Lover of wildlife (Black bear badge) Region: New Jersey Celebrating Gardening: 2015
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NJBob
Dec 17, 2014 5:41 PM CST

Moderator

Looks very interesting, I am going to print it out now thanks.
Name: Bob
Vernon N.J. (Zone 6a)
Charter ATP Member Plant Database Moderator I was one of the first 300 contributors to the plant database! Forum moderator Heucheras Echinacea
Hellebores The WITWIT Badge Dog Lover Lover of wildlife (Black bear badge) Region: New Jersey Celebrating Gardening: 2015
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NJBob
Dec 26, 2014 3:59 PM CST

Moderator

Read it and most the ones in the top 10 have done well for me. I have never seen Steel City for sale, it has been on my want list for awhile.

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