Peonies forum: Bartzella

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Name: Elena
NYC (Zone 7a)
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bxncbx
Apr 28, 2018 3:38 PM CST
Hi! I have a few peonies and most of them are doing well. But I'm having problems with Bartzella. I got it in bloom from Costco a few years ago.

I planted it in the ground and each year it comes up and looks lush and healthy. But it has never bloomed again. It's getting the same treatment as my other peonies (Coral Charm, Abalone Pearl, Sorbet & a NOID). They all bloom. Does Bartzella need something different?

Any help would be appreciated!
Name: LG
Nashvillle (Zone 7a)
Peonies Hummingbirder Hostas Region: Tennessee Butterflies Garden Photography
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Mieko2
Apr 28, 2018 4:55 PM CST
Elena, it took my Bartzellas from a big box store 4 years to bloom. Try to put some bulb food on it now and in September. Do not apply fertilizer on the crown, put it 3-4 inches outside of the crown under the foliage. Water it in.

Good luck.
LG - My garden grows with love and a lot of hard work.
Name: Elena
NYC (Zone 7a)
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bxncbx
Apr 28, 2018 5:01 PM CST
Thanks! I feel a lot better now! Glad to know I'm not doing something wrong. Smiling
Name: Frank Richards
Clinton, Michigan (Zone 5b)

Garden Ideas: Master Level Celebrating Gardening: 2015 Plant Identifier
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frankrichards16
Apr 28, 2018 6:11 PM CST
Sometimes peonies do not bloom because they are planted to deep, but I do not see how that could happen with a potted plant.

I have a couple of bartzellas that I planted as bare roots. They did take longer than usual to produce their first blooms. Now that I think back, they were both slow to develop and bloom.

So, my guess is that what you are seeing is normal.
Name: Karen
Southeast PA (Zone 6b)
Celebrating Gardening: 2015
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kousa
Apr 28, 2018 6:29 PM CST
Elena, your Bartzella does not produce even one bud? Does it produce buds but the buds get aborted? My sister in law also got a potted Bartzella from Costco 3-4 years ago. Hers died the following year. I wonder whether it has anything to do with the roots getting all tangled being potbound. I think you should follow LG's advice by giving it some bulb food this spring - 2tbsp perhaps as soon as you can get to it. I hope you get blooms this spring. If you do not get any blooms this spring, I recommend that you dig it up and divide it cutting out all the roots that tangle so that new roots can begin growing straight out.
Name: Jerry
Salem, IL
Charter ATP Member
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Oldgardenrose
Apr 28, 2018 6:34 PM CST
I have read where Itoh type peonies are favorites for the tissue culture groups. Bargain prices at any big box store could be an indication of tissue cultures. They may or may not perform equally to root divisions.
Name: Elena
NYC (Zone 7a)
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bxncbx
Apr 28, 2018 8:45 PM CST
I planted it in the ground at least two years ago. I've never seen a bud. I don't recall the roots being pot-bound but if they were I would have dealt with them when I planted it.

I have been lurking on this thread and fertilized them with bulb food last week! I've never really fertilized any of my peonies or bulbs before.

They very well could be tissue-culture plants. I know in daylilies it can cause them to be less vigorous and not attain their full potential. But if they survive they do go on to bloom. If peonies are the same then I have to say it not only has survived, it has thrived!

The only other thing I can think of is that my neighbor put up a temporary pool last summer that could have blocked some sun. But it was only up for 2-3 months and the plant still got a good amount of sun. Other plants nearby would have had the same issue and they seem fine so far this year, as does the peony. The neighbor cut down a small magnolia to have space for the pool and the tree blocked way more sun than the pool.
Name: Liz Best
Elizabeth Colorado (Zone 4b)
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LizinElizabeth
Apr 29, 2018 6:46 AM CST
I also struggled to get Bartzella to bloom, still have a couple out there from on-line mass sellers that have never produced a bud. I wouldn't worry about planting depth with an Itoh--there are growers out there who recommend planting them as deep as tree peonies! I have lost an Itoh to planting too shallow, think it just dried out too much.
I am a peony fertilizing convert. I NEVER fertilized my peonies before 3 years ago, not even once. My beds are pretty much all raised here, planter's mix on top of cardboard on the native soil most places, and I thought that should be enough, right? You'd think so but I got 1st year blooms on half or less of the peonies I planted. Tried the organic bulb food that Karen recommended and was shocked at the difference! More and bigger blooms consistently and I'm up to probably 75% of new plants budding 1st spring. For your Bart I'd target one of the organics that is more high in potash, seems to promote more blooms. I now switch between varieties in the Epsoma line, depending on what's sold locally and what I can find at the best price on Amazon. Also have a mix of mycorrhizal fungi that I want to experiment with on some new roots coming in this spring, will post the experiment on the peony forum!
LizB
Name: LG
Nashvillle (Zone 7a)
Peonies Hummingbirder Hostas Region: Tennessee Butterflies Garden Photography
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Mieko2
Apr 29, 2018 6:50 AM CST
Oh I will chime in on the fertilizer. I too never fertilized mine before joining here. The fertilizer really makes a difference.
LG - My garden grows with love and a lot of hard work.
Name: Karen
Southeast PA (Zone 6b)
Celebrating Gardening: 2015
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kousa
Apr 29, 2018 7:11 AM CST
Elana, my SIL bought the Bartzella from Costco in a 5 gallon pot. It was huge and I was surprised that it died. Did you buy yours that way or did you buy yours smaller or bareroot? Unless it is in total shade, I don't think it should affect blooming.

Although I have used fertilizer on peonies, I have been pretty conservative with the application. I would like to increase my rate of application for established peonies but don't want to go overboard. I wonder if I should apply 1/4-1/2 cup for tree peonies? At what rate do you apply your bulb fertilizer to your tree peonies? How much do you use for established herbaceous peonies (3 or more years old)?
Name: Elena
NYC (Zone 7a)
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bxncbx
Apr 29, 2018 7:16 AM CST
Good to know. I'm not sure which brand I bought, whatever Home Depot had since it wasn't the right time to buy bulb fertilizer.

I garden organically so if what I bought isn't organic I'll switch to something that is.

I have lots of buds on the other peonies (except the NOID since it is more shaded). I hope to be amazed next year with their growth and even more blooms! Hurray!

I bought my Bartzella potted like your SIL. It wasn't huge though. I only bought it because I felt sorry for the poor plants. They were all indoors with no natural light.
[Last edited by bxncbx - Apr 29, 2018 7:19 AM (+)]
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McLean, VA (Zone 6b)
daylilly99
May 24, 2018 5:06 AM CST
I bought a Bartzella from Costcto last year also - in a pot and with blooms on it. It's still alive but no blooms this year. My other intersectionals are blooming and thriving (including another Bartzella from a nursery).

I'm guessing they must be tissue cultured for the price at which they are selling them. I was at Costco yesterday and noticed a Cora Louise going out in someone else's cart. That one and Singing in the Rain increase extremely well here but Bartzella is slower and Kopper Kettle is very slow.
Name: Elena
NYC (Zone 7a)
Daylilies Spiders! Plant and/or Seed Trader Winter Sowing Hybridizer Peonies
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bxncbx
May 24, 2018 7:47 AM CST
I know tissue culture plants aren't as good as ones that increase naturally. But, I didn't think it meant that it takes 4 years for them to bloom again! Seems like the plants should just be a bit weaker or smaller or something like that.

But the plant still looks good and is very lush (although much smaller than my other herbaceous peonies). I guess I'll just have to wait and see! Good to know Bartzella doesn't increase much even naturally. Smiling
Name: Nancy
Bowling Green Kentucky (Zone 6b)
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alilyfan
May 25, 2018 9:50 PM CST
I hope the fertilizer helps your Bartzella. I have never fertilized mine before, but I think I need to start. Bartzella does really well here though. I got mine potted from a box store a few years ago. It did not bloom the next year, but has every year since.
Name: Liz Best
Elizabeth Colorado (Zone 4b)
Peonies Enjoys or suffers cold winters Winter Sowing Region: Colorado Plant and/or Seed Trader Irises
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LizinElizabeth
May 27, 2018 10:40 AM CST
Once the roots are big enough to go into one of those 2 gallon pots I don't think there's really any difference at all in tissue cultured vs divided roots if they're otherwise identical—i mean tc from a very good volunteer plant, divided from a very good plant, equal care in planting in the pot and then in the ground, etc. if you plant in the spring, especially with buds, the roots wont increase as well as those in the fall, etc, there are just so many factors involved it's sometimes impossible to determine what makes 1 plant thrive while another doesn't.
LizB

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