Paul Barden's list of black spot resistant roses

11 years ago

Since I got some open-pollination seeds of My Stars, bred by Ralph Moore, from Texas A&M University breeding program, I was checking on My Stars and found this survey on black spot resistance by Paul Barden.

Among his list of + (means 100% resistance), I grow Basyes Blueberry, 100% healthy regardless of our week-long rain. I'm NOT a good source to comment on the list, since my most of my roses are clean, being next to a limestone quarry (lime is natural fungicide).

Paul Barden is from Pacific Northwest. I wonder how's his list as applied to different regions of the country?

Here is a link that might be useful: Paul Barden's list of blackspot resistant roses

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Comments (10)

jeannie2009
11 years ago
Thank you for this list. I grow some of the same roses and have about the same experience. I am in Western Washington at the very bottom of South Puget Sound.
I saved the list to favorites and will refer to it when placing future orders. Quite hekpful indeed. Thanks again.
Jeannie
mendocino_rose
11 years ago
I think this list is very useful. I could see many roses that I grow that I would agree are blackspot resistant. Some of the roses on list 2 had a little more of a problem for me, like Roundelay and Distant Drums. Also some roses that resist black spot get rust.
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I should show photos that depict its lack of vigor too. Great for dry heat, no crisping... but maybe not good for other areas. No new little canes yet. I really should be pinching off buds as instructed, I just got too busy. One got some black spot and defoliated, which isn't a problem ever here so if you're in a black spot area it's probably not so good. The others all have a little black spot too. This one gets the most sun and heat... it's the happiest. All my broccoli and celery, lettuce and radishes bolted in that bed too. It's hot.
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Sorry for the late reply to your query Joe. I haven't been on the forum much over winter, busy with other things. I did go up to the Summerland Ornamental Gardens yesterday to do a quick check on the roses. We had a very difficult winter with a warm November and December, and in early January a sudden flash freeze with temperatures as low as -27 C for a week or so. It is still late winter here and the soil is yet frozen to a degree. Summerland is rated as zone 6b, but we had 5a temeratures with strong arctic catabatic winds and wind chill during the cold snap. So, on to the roses. Most of them will be going into their 3rd growing season this summer, and so are still immature plants. I am happy to report that all of them survived. Many have quite a bit of cane damage, but they all have live cane close to the ground and some have swelling buds already. The collection at the Gardens consists of the following: Marianne, Gallicandy, Oshun, Jerry Jennings and Treasure Trail. We also have Allegra, Janet Inada, Mel's Heritage and Won Fang Yon in the greenhouse at Fraser Valley Rose Farm in Deroche. I will continue to look for viable opportunities to acquire more varieties if feasible, but won't be actively seeking them out. We imported six cuttings of each, along with many more early Austin varieties and a few other hard to find varieties last spring. Jason stuck the cuttings and has been growing them on over winter. I have not spoken with Jason for a month or so, but he is doing an inventory and I will know in a few weeks what took. As well as putting Paul's Plants into the collection at Summerland, Jason will be growing Barden varieties as well and will no doubt have some for sale in Canada in a few years. We too will propagate from the plants in the Summerland collection when the mother plants are mature enough. We will sell our resulting plants at our spring plant sale and our annual Rose Tour held in June. The proceeds will go to help support the Ornamental Gardens. So by my count, we have nine of Paul's varieties in the two Canadian collections. They should be secure for a long time in our Public Garden, which is now 110 years old. We of course were unable to get all of the varieties that we might have liked, but we did pretty well in my books. Because the whole idea of the project was to secure and currate some of Paul's varieties in a safe place, I guess we have a success. An additional intent was to allow us to propagate and share these lovely plants with others. Jason will be able to do that better than we can at the Gardens in the next few years and may in fact eventually begin shipping to the US as his new nursery grows. But again, that will be a few years down the road. Even propagating plants for sale here in Canada is still a year or two away. But then this project started in 2019 and we are now entering year six, but we are on the road to reaching our long term goals. I know many on the forums are familiar with Jason through his You Tube Videos and website. he is young, energetic and a cutting edge nurseryman and Rosarian who shares my passion for preserving rare, garden worthy varieties. For those of you in Canada, check out his website and support him if you can.
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henry_kuska
11 years ago
If you wonder if Paul Bardens' area is a good location to test blackspot resistance, this is how he has described his location:
"Willamette Valley, OR, zone 8-ish, land of slugs and Diplocarpon rosae."

http://www.rosebreeders.org/forum/read.php?2,47899,47899#msg-47899

(Diplocarpon rosae is blackspot)
TNY78
11 years ago
I was wondering the same thing, Henry. I think of blackspot as a more prominant issue on the East Coast. I would guess that any blackspot on the West Coast may be a different strain than what we have here. Please correct me if I am wrong, I'm still learning :)

Tammy
henry_kuska
11 years ago
Somewhere recently Paul had a different very funny name for where he lived (a blackspot related dig). I will keep looking (as time permits).
catsrose
11 years ago
Resistant, as opposed to free from, is the operative word here. I do live in a heavy blackspot belt and grow many of the roses on the list. Yes, they resist it better than others, but almost all have had BS. The only roses that are 99.9% BS free are rugosas. The gallicas are pretty close to that. Cl Cecile Brunner comes in at about 90%. The rest are below that. I don't know about the Canadian roses like Wm Baffin as I don't grow any of them. My noisettes are also pretty good. It depends on the year. This was a good year. Two years ago I tore my hair out and actually sprayed a few times--I am a no-spray nut.

I pretty much agree with his ranking, but would definitely keep in mind that resistance is not the same as immune.
emme-dc
11 years ago
I'm really new to roses, so please forgive me for being confused. Is Paul Barden just listing the roses that he breeds and sells? I guess the observations are based on what he's growing, but is he 10% comprehensive? 2% comprehensive? 90% comprehensive?. None of the other BS-resistant recommendations people have given me are on this list. I'm having trouble even figuring out what is the universe of varieties to investigate. Then folks talk about families of roses ("Rugosas...gallicas"; "hybrid musks")--do you just have to know which of those lovely, evocative names belongs to which family? I mean, is there overlap between the named cultivars on the list and the families people are generalizing about?
fig_insanity Z7b E TN
11 years ago
Emme-dc, you've posed a lot of questions, but let me see if I can briefly touch on them. First of all, Paul at one time (and may still) grew upwards of 2000 different roses. His knowledge of those roses in HIS climate is probably as comprehensive as it gets. That said, he does live in a place VERY conducive to blackspot pressure. He does list some of the roses he bred, but the list is overwhelmingly the work of other breeders, and most still in commerce. There is no true "comprehensive list" that could possibly cover all different growing conditions and climates that exist over the USA; it's a big place. It would take someone in every climate zone (hot humid summer/hot dry summer/long wet spring/cold winter/warm winter/no winter!), growing several thousand varieties of roses, under the same conditions (no spray/spray, irrigated/rainfall only, chemical fertilizer vs organics...) to ever be able to say which roses are truly black spot/mildew/rust resistant and to what degree. That's why so much about disease resistance is anecdotal, and VERY area specific. That's where HelpMeFind.com comes in. In case you don't know of it, I'll put the link below. You just type in the the varietal name of your rose, and the page for that rose (hopefully) has all the info you need, including hardiness, size, disease resistance, and the family it belongs to. As for finding other roses in that family, you can also search HMF by "class", and if you become a supporting (paying) member, you can search multiple options and criteria. If you want a dark red, disease resistant, short climbing China rose...well, there you go, all the possibilities are yours for the choosing. HelpMeFInd and this forum are two of your best friends.

John

Here is a link that might be useful: HelpMeFind Advanced Rose Search
fig_insanity Z7b E TN
11 years ago
Oh...and I forgot to tell you to be sure to read the member comments about each rose. THAT'S where you often find the area-specific info you'll need concerning disease resistance. Just click the "comment" tab at the top of the HMF page for that rose.
mad_gallica (z5 Eastern NY)
11 years ago
Emme-dc, probably the easiest way to start to figure things out is to start a new thread, and describe what you want the rose to do for you. How big, what color, fragrance? Anything you can think of. Then pay attention to what people near you recommend, and TOTALLY IGNORE!!!! people from more than a day's drive away. They will try to tempt you with impossible roses. Just pay no attention.

The results aren't going to be lengthy, if Mid-Atlantic blackspot resistance is part of the equation. But there should be one or two worth investigating.

Paul Barden's list of black spot resistant roses

Comments (10)

jeannie2009

mendocino_rose

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