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Best BS resistance--Colomb, Rohan, Chambord?

Posted by dublinbay z6 KS (My Page) on
Sun, Sep 7, 14 at 16:10

Like most gardeners, I like a fragrant rose, but fragrance is NOT the primary trait I look for when I'm buying a new rose. To me, it is BS resistance--number one top concern!

So, you Midwest gardeners (and anyone else who wants to pitch in), which of the following big bloom Old Roses is the MOST BS RESISTANT?

Alfred Colomb (HP)
Duchesse de Rohan (Portland)
Comte de Chambord (Portland)

Thank you,

Kate


Follow-Up Postings:

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RE: Best BS resistance--Colomb, Rohan, Chambord?

Not Comte de Chambord.


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RE: Best BS resistance--Colomb, Rohan, Chambord?

None of them.


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RE: Best BS resistance--Colomb, Rohan, Chambord?

Sigh--you folks are not being very encouraging. Here I am trying to expand my repertoire of roses to include more old roses also, and I've spent hours and hours researching a bunch of them, and now that I've narrowed down my choices to what I thought were 3 terrific choices, you are telling me to go back to modern roses and forget about the old roses? : (

I really want to put in an order this week for next spring, so would appreciate any input from experienced gardeners--even if those experiences weren't totally positive. (I'll survive somehow--LOL).

Kate


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RE: Best BS resistance--Colomb, Rohan, Chambord?

Your trying to swim in the wrong gene pool. With a few notable exceptions, repeat blooming, hardy OGRs aren't particularly disease resistant. They also aren't particularly good at reblooming. Which is why I have a garden full of once bloomers. It started out very differently.

Do you already have Jacques Cartier? Unfortunately, I've seen evidence that at least one nursery has confused JC and Comte de Chambord. So even that one is no longer a no brainer.


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RE: Best BS resistance--Colomb, Rohan, Chambord?

Duchess de Rohan has the best foliage of the Portland and early Damask Perpetual roses I grow. It also, as said above,does not rebloom very well.


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RE: Best BS resistance--Colomb, Rohan, Chambord?

Kate, have you tried the rugosas? I shouldn't even comment since I know nothing of your disease challenges, but I had the understanding they were fairly resistant to disease. Some of the ones I've seen, like Magnifica, Schneezwerg and Jens Munk, are really beautiful, and I know that many of them are quite fragrant.

Ingrid


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RE: Best BS resistance--Colomb, Rohan, Chambord?

I'd agree on the older Rugosas -- good repeat and excellent disease resistance. 'Stanwell Perpetual' is not bad in that regard. 'Tausendschoen' is good against BS (not so re. Powdery Mildew), but I wonder if it's adequately hardy in your climate? Autumn Damask may be ok.

If you're willing to go the once-flowering route, most of the Gallicas and Albas will be excellent.


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RE: Best BS resistance--Colomb, Rohan, Chambord?

Kate, I second Ingrid and Malcolm on the rugosas. Rugosas have been disease-free performers for me in both Portland, OR, and Minneapolis, MN. The Pavement series is nice and compact. Older, bigger ones like Roserie de l'Hay are wonderful if you have the space. Jacques Cartier (hybrid perpetual/Portland damask) has also been good for me. Good rebloom, good disease resistance. Carol

This post was edited by PortlandMysteryRose on Tue, Sep 9, 14 at 20:19


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RE: Best BS resistance--Colomb, Rohan, Chambord?

Thanks, folks. I used to grow a well-known white rugosa (I've forgotten the name), but eventually dug it up because it wouldn't bloom very often and didn't grow tall enough. On the plus side, it never had disease problems.

Currently, I'm growing Fru Dagmar rugosa--she is very nice, but I can't really get excited about her. Glad I have her since no one else seems to grow rugosas, so I can illustrate them by showing off mine--and she has no disease-problems--but like I said, she doesn't really get my heart beating. On the other hand, I have no plans to get rid of her.

I guess I will just have to give up on the idea of planting anything except moderns. For about 5 years nows, I have grown two HPs, several polyanthas, several hybrid musks (including Ghislaine de Feligonde and Felicia which I planted last year), and ONE Bourbon--the ever popular near clone of SDLM (Mystic Beauty). I guess I'll just have to settle for those, and turn my attention back to Austins and Kordes roses.

Thanks for your good thoughts, however.

Kate


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RE: Best BS resistance--Colomb, Rohan, Chambord?

I am in zone 5 in Sweden, a dry part of the country. The rose I got as Comte de Chambord, now considered to be Madame Boll over here, is a hopeless case that blackspots early. Duchesse de Rohan and Alfred Colomb both belong to my favourite roses. They are healthy and repeat well, Rohan perhaps a bit better than Alfred, also a weaker grower. But I love Alfred for its scent and colour, one of my few reds. The photo was taken by a visitor to my garden, a better photographer than I.


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RE: Best BS resistance--Colomb, Rohan, Chambord?

Thank you for your comments, mariannese --particularly about Duchesse de Rohan. I recently ran across some positive comments about her on a couple of other gradening sites. I may keep her on a Possible List for future consideration.

Kate


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RE: Best BS resistance--Colomb, Rohan, Chambord?

Hi Kate

For what it's worth, I have Alfred Colomb and it doesn't blackspot particularly worse for me than the moderns in my yard, and I know we have similar climates. I don't have the other two, but I've tried Comte de Chambord a time or two and it wasn't remotely winter hardy for me. A zone warmer with you might make a difference on that one.

In general, as you're considering classes of OGRs for your yard, you may not have to restrict yourself to moderns and Austins even with your reblooming and disease resistance criteria. What you may end up doing is picking and choosing among members of a particular rose category, since there's a lot of variability among them. My favorite example is Noisettes, which aren't even supposed to be considered in zone 5, but Madame Alfred Carriere is bullet proof as long as she has any surviving cane to work with. Similarly, Madame Isaac Periere and Reine des Violettes are from classes that are supposed to be blackspotted messes, but they're equally reliable for me. Some hybrid musks melt like butter in my winters and some are rock solid. I have several Bourbons and Hybrid Perpetuals that do fairly well, and I'm still working on Portlands, but I haven't given up on them as a class. And then there are the teas...

I'm like you that rugosas tend to be plenty hardy and terribly unexciting for me in my yard. Therese Bugnet is highly recommended and has yet to bloom once in 3-4 years in my yard. Rountuit is a Moore creation and it has scruffy quarter sized blooms for about a week in spring and then flops around on an ugly bush. Yet Linda Campbell is a lovely self sufficient true red that reblooms reasonably well and convinced the neighbors they wanted a rose just like it growing into their Black Lace elderberry bush.

Just encouraging you not to get discouraged about reblooming OGRs if you want to pursue them. By all means, grow whatever you like and moderns obviously do well for you, but it doesn't necessarily mean particular classes are written off for you because of your requirements.

Cynthia


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RE: Best BS resistance--Colomb, Rohan, Chambord?

Thanks for the encouraging words, Cynthia. At the moment I'm stymied. The one Bourbon I have been trying to get for 2 seasons now and that just became available at Palatine on Sept. 8 was already sold out within 24 hours and Palatine notified me today that they are rescinding my order of 24 hours earlier. I'm feeling so frustrated that I don't even care to try now. If I'm not getting that one (Boule de Neige), there is no reason for me to worry over the others ones since I was only ordering them to complete my Palatine order. Since I've cancelled the entire Palatine order, I plan to go sulk for several months--at least!

But I do look forward to seeing your pics of all your "experiments" in roses.

Kate


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