22,153 Garden Web Discussions | Roses

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rosetom(7 Atl)

Tebuconazole (Bayer) ... propiconazole (Banner Maxx) ... everything else that's said is just hysterics, IMHO. They're among the most inoffensive chemicals around. The stuff is even used in shampoos to prevent dandruff - Nizoral (ketaconazole).

    Bookmark     June 23, 2013 at 10:18PM
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susan4952(5)

Bayer advanced is very effective. Picture has nothing to do with anything. I just like to show off.

This post was edited by susan4952 on Sun, Jun 23, 13 at 23:17

    Bookmark     June 23, 2013 at 11:16PM
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the_morden_man((Z4-Z5) Ontario, Canada)

Sometimes you just get a dud plant. I've seen this in a few beds where I've done mutiple plantings of the same rose. Same bed, same light conditions, same soil and treatment and they just refuse to flourish even though the other 4 or 5 of the same variety do just fine. It happens.

    Bookmark     June 23, 2013 at 3:10PM
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rosetom(7 Atl)

In my experience, if it's a long-term problem, there's something in that hole that you missed - a rock, etc., that's blocking the roots.

If it's something else, then what others have recommended may work. Be sure it gets at least 6 hrs of sunlight. Build up a 3-4 ft diameter drip ring with mulch (I like shredded pine bark mulch), and feed it organics - my organic of choice is Mills Magic Mix.

If none of that works, there's something in that hole.

    Bookmark     June 23, 2013 at 10:56PM
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rosetom(7 Atl)

Peace is the greatest rose every hybridized for a reason.

    Bookmark     June 23, 2013 at 9:50PM
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chibimimi

Thanks for the recommendations.

I get conflicting information on Fru Dagmar. A local nursery and some websites say it just flowers once, in the spring. Other websites say it flowers throughout the summer. What is your experience with this?

    Bookmark     June 23, 2013 at 7:49PM
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the_morden_man((Z4-Z5) Ontario, Canada)

Frau Dagmar flowers very heavily in spring, but also repeats well all season and very well if dead headed. If not, she also sets beautiful red and large hips that add fall and winter interest. She's a beautiful rose and one of my favorite Rugosas.

    Bookmark     June 23, 2013 at 9:48PM
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jim1961 Zone 6a Central Pa.

What's your general location & growning zone?
Are you sure they are dead?
A pic would really help us...
Were they big or small Ko's?

Maybe rabbits ate them?

Our young knockouts were eaten to ground last winter but look great now...

This post was edited by jim1961 on Sun, Jun 23, 13 at 21:43

    Bookmark     June 23, 2013 at 8:54PM
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westgate(8b Brit.Col.)

As far as I know, they have retired.... don't know if someone else has the business. I found them easy to contact and was really happy with their service..... perhaps you have tried to contact them since they retired.... it is too bad they are gone! I tried to propagate Island pearl from cuttings.... in a very slap happy fashion, and so far one is all that is left!

    Bookmark     June 17, 2011 at 12:44PM
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bmiceli

I know this is an older post, but thought I would respond anyway. I just bought an Island Pearl Rose from Milner Gardens. They have an ongoing plant sale of unique, high-quality plants.

Here is a link that might be useful: Milner Gardens

    Bookmark     June 23, 2013 at 5:52PM
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seil zone 6b MI

Interesting. I have to say I've used that Actinovate and as far as I can see it didn't prevent black spot in my roses.

    Bookmark     June 23, 2013 at 1:10PM
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henry_kuska

seil, how long was your Actinovate trial, and did you start before blackspot appeared?

The one Actinovate label that I found listed mildew but not blackspot for roses.

Here is a link that might be useful: Actinovate label

    Bookmark     June 23, 2013 at 2:16PM
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Roselover1348(8)

I had a JFK that I shovel pruned after 4 years. it was always soooo promising. excelent growth, long canes, no black spot (only mildew when the damp ocean air sticks around too long), and HUGE HUGE HUGE flower buds which never opened all the way because I think it is too moist and/or cool so close to the ocean.
I gave up and swore off white roses. :)

    Bookmark     June 22, 2013 at 8:11PM
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charleney(8a PNW)

Still no good after 6 yr. trying everything! Shovel pruned was the best thing I did for it. And I do know how to take care of roses, thanks to this forum! Will never try it again.

    Bookmark     June 23, 2013 at 1:36PM
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michaelg(7a NC Mts)

Follow the dead cane downward and you will find something wrong near the base. It is broken, or has been bored hollow by an insect larva, or the bark has been girdled by a canker fungus (patch of black or brownish bark). Cut the dead cane out.

This post was edited by michaelg on Sun, Jun 23, 13 at 12:26

    Bookmark     June 23, 2013 at 12:25PM
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seil zone 6b MI

I had this happen on my Baby Blanket rose tree a few years ago. Do what Michael suggests and find the point where there's some kind of injury and cut it off below that. It took a year or so to fill back out but my tree recovered just fine afterwards.

    Bookmark     June 23, 2013 at 12:55PM
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St. Patricksecond bloom.
Posted by deervssteve(9) June 22, 2013
10 Comments
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ogrose_tx

I did go to helpmefind, but everyone on their list seems to be out of this rose at this time...

Thank you deervssteve, I'll try rosesofyesterday...

I really wouldn't want anything shipped until Fall, so will keep my eye out for this rose, it sounds great for our area!

    Bookmark     June 23, 2013 at 12:30AM
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ken-n.ga.mts(7a/7b)

Have you contacted K&M Nursery or Coolroses?? I grew St Patrick in FL. It was a huge workhorse for me. By the time it was 4 yrs old it was putting out 35/40 blooms per bloom cycle. It's on my list for next spring.

    Bookmark     June 23, 2013 at 8:42AM
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susan4952(5)

Thank you, Donald. Looked it up on HMF. The exact same characteristics.

    Bookmark     June 21, 2013 at 8:54PM
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donaldvancouver(cool wet z8)

You're most welcome. Dortmund is a beautiful thing. I hope you have lots of room; this is what Dortmund can do, here on the west coast anyway.

    Bookmark     June 22, 2013 at 11:08PM
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susan4952(5)

Oops...here he is.

Here is a link that might be useful: https://www.facebook.com/photo.php?fbid=258833130809968&l=efa5bde95f

    Bookmark     June 22, 2013 at 10:00PM
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susan4952(5)

Oops...here he is.

Here is a link that might be useful: https://www.facebook.com/photo.php?fbid=258833130809968&l=efa5bde95f

    Bookmark     June 22, 2013 at 10:01PM
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socks

No, but it would be an interesting addition to a garden. Colors look like a tropical sunset.

    Bookmark     June 22, 2013 at 6:49PM
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seil zone 6b MI

It's different! I have a sort of similar seedling but the petals aren't quite as separated as those. It's from an OP hip of What a Peach.

    Bookmark     June 22, 2013 at 8:48PM
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growing_rene2

The link is, unfortunately, not connecting to the site.

    Bookmark     June 22, 2013 at 6:18PM
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henry_kuska

I used the edit function. Hopefully it should work now.

If not, you can reach it at:
http://www.rosebreeders.org/forum/read.php?2,52924

    Bookmark     June 22, 2013 at 7:50PM
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the_morden_man((Z4-Z5) Ontario, Canada)

The leaves show some minor early infection of blackspot. They also have some whitefly damage and it looks like a rose slug larvae may also have been chewing on some of the leaves. None of it terribly serious.

You should have just left the foilage on the plant as even damaged leaves still provide energy to the rose. It will shed them itself when the leaf is no longer viable.

    Bookmark     June 22, 2013 at 6:12PM
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socks

Those are really pretty flowers. Some rose bushes hold their flowers longer than others, and this one may be just a bush that lets its flowers go pretty quick after they open.

The only thing to do now is wait and see how it does after losing so many leaves. I think it will come back, but keep an eye on it for new growth. Keep it watered, how much depends on whether it is in direct sun or not and your daily temps. Roses do best in direct sun.

Not sure about that wire holding it up. If it's an important wire, you might want to get a narrow trellis to support the bush and get it away from the wire.

Good luck.

    Bookmark     June 22, 2013 at 7:06PM
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