Clematis forum: Jackmanii Superba

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Name: Karen
Minnesota (Zone 4a)
Region: Minnesota Garden Art Garden Ideas: Level 2 Celebrating Gardening: 2015
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Cookies4kids
Apr 30, 2015 5:07 PM CST
I purchased this plant two years ago because I wanted something that would be vigorous, and then I heard it wasn't so great. This will be its third year and it only has one main stem. Should I discard it and get something new, and what would you suggest.
Happiness is doing for those who cannot do for themselves.
Name: Anna
North Texas (Zone 8a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Region: Texas Clematis Garden Ideas: Level 1 Celebrating Gardening: 2015
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canadanna
May 3, 2015 6:45 AM CST
I don't know specifically about suberba. I have the regularJackmanii and it is vigorous.
Type 3 Clematis like to be cut back to about 12"in the early spring. Probably not too late to do in your area.Give some fertilizer and a drink of diluted epsom salts monthly too. If planted on an angle sometimes can get more stems. If you have done all these things and it is still doesn't meet your expectations, you can always plant another clem right beside it , even in the same large hole.
Name: Arlene
Southold, Long Island, NY (Zone 7a)
I was one of the first 300 contributors to the plant database! Tomato Heads Houseplants Garden Ideas: Level 1 Photo Contest Winner: 2014 Celebrating Gardening: 2015
Plant Identifier
pirl
May 3, 2015 8:29 AM CST
Our Jackmanii's are superb but they are not Jackmanii Superba. One grows so lush I have to cut it back a few times each summer.
Thumb of 2015-05-03/pirl/fe87cf


Name: Anna
North Texas (Zone 8a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Region: Texas Clematis Garden Ideas: Level 1 Celebrating Gardening: 2015
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canadanna
May 3, 2015 9:36 AM CST
WOW!
Name: Arlene
Southold, Long Island, NY (Zone 7a)
I was one of the first 300 contributors to the plant database! Tomato Heads Houseplants Garden Ideas: Level 1 Photo Contest Winner: 2014 Celebrating Gardening: 2015
Plant Identifier
pirl
May 3, 2015 9:42 AM CST
It backs up to one of the compost bins and that's why it's so lush.
Name: Jason
Gold Bar, Washington (Zone 8b)
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riverman123
May 3, 2015 12:05 PM CST
do you currently have it in conditions that it doesn't like...? I would think two years would be a great start for establishing a good root system. the upper part of the stems should be in full sun and the roots need to be kept cool, by other plants or a fence or something. we use hostas planted around the base of our superba to keep its roots cool. we also fertilize ours with diluted organic 5-1-1 fish emulsion. its EXCELLENT for putting on growth prior to blooming. we also work in alfalfa meal into the surrounding soil once it starts putting on new growth. We've had our "Superba" not even two years now and its light years above and beyond any clematis ive ever owned! growth is so vigorous and the stems have already reached the top of the trellis its growing on and its about to take over! not that thats a bad thing, the more vigorous the better, the more flowers the better!! im just saying its not going to leave much room on top of the fence for the two other clematis plants (Henri & Gravetye Beauty) trying to catch up! ha

the pic below was taken on July 2nd of last year. it had only been in the ground 18 months at the time!
Thumb of 2015-05-03/riverman123/eab313

[Last edited by riverman123 - May 3, 2015 12:09 PM (+)]
Give a thumbs up | Quote | Post #844131 (6)
Name: Anna
North Texas (Zone 8a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Region: Texas Clematis Garden Ideas: Level 1 Celebrating Gardening: 2015
Image
canadanna
May 3, 2015 12:09 PM CST
Good fertilizing advice. Yours looks SUPERB!
Name: Jason
Gold Bar, Washington (Zone 8b)
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riverman123
May 3, 2015 12:12 PM CST
Thumbs up I agree Hurray! Thank You! Rolling my eyes.
Name: Karen
Minnesota (Zone 4a)
Region: Minnesota Garden Art Garden Ideas: Level 2 Celebrating Gardening: 2015
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Cookies4kids
May 3, 2015 3:07 PM CST
What a fabulous picture, Jason. Everything is so lush looking. How about more pictures of your gardens so I can be really jealous!!!

Yes to all those things about my J. Superba. One of the gals from the nursery where I bought is a Master Gardener, and she said hers did the same thing. Of the three people that she knew purchased it, only one had good luck. I am warning it that this is its last chance, so we will see!!!
Happiness is doing for those who cannot do for themselves.
Name: Jason
Gold Bar, Washington (Zone 8b)
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riverman123
May 3, 2015 3:22 PM CST
Warning it??? ha, I like that! threaten it with some horsetail or something, that may help! don't know what to say about your bad luck with your superba. maybe purchase another one, see what happens with it; and keep this one going along with it...? I must say I couldn't be happier with mine. who knows, maybe this will be your lucky year!

pics of my other gardens can be seen here: The thread "Gold Bar, Washignton. Our Yard..." in Garden Photos forum
Name: Anna
North Texas (Zone 8a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Region: Texas Clematis Garden Ideas: Level 1 Celebrating Gardening: 2015
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canadanna
May 3, 2015 8:40 PM CST
riverman, are you blessed with wonderful Washington weather? That might be the difference.
Name: Jason
Gold Bar, Washington (Zone 8b)
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riverman123
May 5, 2015 4:46 AM CST
thanks!

sometimes its wonderful, on occasion, like on saturday. its actually pretty mild, as in, we don't have too many extremes. at least not on the west side. I think the difference however is we just try to grow stuff that's suited for our environment.
Name: Anna
North Texas (Zone 8a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Region: Texas Clematis Garden Ideas: Level 1 Celebrating Gardening: 2015
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canadanna
May 5, 2015 9:28 PM CST
Yes, zone envy can be costly!
Name: Betsy
Texas (Zone 9a)
Christmas time is here!
Region: Texas Daylilies Native Plants and Wildflowers Amaryllis Cottage Gardener Container Gardener
Lilies Vegetable Grower Hummingbirder Bulbs Plant and/or Seed Trader Clematis
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piksihk
May 15, 2015 8:49 AM CST
I actually rescued, from death (these were dying from lack of water even after I told cashier they needed watering) I went in store every week to check on them and the bees jubilee and ended up with 2 of each marked down 2/$12; had previously brought two at full price $12.99. I've never seen these in my area so had to get them. 😃
God writes the gospel not in the Bible alone, but on trees and flowers and clouds and stars. ~Author unknown, commonly attributed to Martin Luther
Name: Anna
North Texas (Zone 8a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Region: Texas Clematis Garden Ideas: Level 1 Celebrating Gardening: 2015
Image
canadanna
May 15, 2015 10:28 PM CST
I never see deals like that! You knew what to look for
Name: Arlene
Southold, Long Island, NY (Zone 7a)
I was one of the first 300 contributors to the plant database! Tomato Heads Houseplants Garden Ideas: Level 1 Photo Contest Winner: 2014 Celebrating Gardening: 2015
Plant Identifier
pirl
May 16, 2015 8:12 AM CST
I agree! I was at Lowe's yesterday and their sale items were pathetic but a good buy for those who can nurse them back to health.

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