21,401 Garden Web Discussions | Roses

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sunnysideuphill(5)

There was a beautiful very tall white Rose of Sharon in town, in the open by a fence. Every time I drove by it in bloom, it would (almost) turn my head. Then one spring it was gone. No idea why, and the rest of the landscaping didn't change.
My location is more sheltered, with an evergreen line in back of and below this border location. So this is the current front runner!
And yes, my Darlow literally fell over with the torrential rain we had a few weeks ago - on top of the Cardinal de R below it on the slope, with enough force to break canes. I pruned the gallica hard, after I slipped a line around the Darlow, and used bungee cord to attach line to eye hook on side of house wall, hauling Darlow vertical again. Darlow none the worse for wear, nothing broken, still blooming. But clearly a hazard to his neighbors!

    Bookmark   July 10, 2013 at 1:33PM
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roseseek

Altheas grow in almost all of our climates here. I've collected many colors and flower shapes because they are SO agreeable here, and they root without fail. Ironically, I did snap a photo of the white with burgundy center one at my friend's house in Torrance last week. In her more coastal climate, the flowers are HUGE, compared to here where it's hotter and drier. Hers flowers for many weeks longer than mine, too. Kim

    Bookmark   July 10, 2013 at 1:54PM
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roseseek

There are several possible explanations. Notice the two other threads here concerning how heat causes the reduction in bloom size. If you feel increased heat isn't the issue, it may easily be that the soil it has grown in has finally depleted, reducing the available oxygen available to the roots, and perhaps the nutrients. Drainage suffers as soil breaks down. The plant could need repotting to correct the drainage, improve the water holding capabilities of the soil and improve the nutrition available to the plant from the soil. I'm sure there may be other possibilities, but these come to mind first. Kim

    Bookmark   July 10, 2013 at 3:23AM
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ken-n.ga.mts(7a/7b)

If you're going to do a few mini's, make sure you get some of George Manders mini's. He is just a little north of you over in Canada. Make sure you get 2 bush's of Glowing Amber. Fantastic rose. Hortico Nursery's carries all his stuff.

    Bookmark   July 9, 2013 at 11:07AM
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frenchcuffs13(z8a)

Wonderful advice from everyone, thank you!

Ken, i will check them out, Glowing Amber is well, glowing! And ofcourse I'm open to other ideas and suggestions and would love to hear what roses you all like, any type.

Racin- This weekend is at Olympia, WA on Saturday July 13th. I hope to see you there, my name is Sarah (and no I'm not french. drat.) I only brought 1 rose to my first show, so i encourage you to try if you want. Just bring your best one and have fun. This is a great easy to read article that encouraged me to try. And just think- you get to enter the novice class too.

http://spokanerosesociety.org/2013/06/bringing-roses-to-the-show/#comment-6054

Don't get me started on Raft Island-heaven!

    Bookmark   July 10, 2013 at 3:04AM
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reemcook(8a PNW)

Costco has planters for $12 each. The planters are quite large (I am unsure about the gallon size). It seems like a good deal.

Best regards,

Reem

This post was edited by reemcook on Tue, Jul 9, 13 at 15:49

    Bookmark   July 9, 2013 at 3:46PM
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neonrider(USDA 8A ^ Sunset 31 ^ Mid-SC)

No box store sells 25 gallon nursery containers. I am placing an order with HAVILAND soon since I need to expand my collection by several hundred specimen trees. Haviland is selling their nursery containers really cheap. I could get you for example 25 gallon Haviland for $5.50 each (pick up in my yard SC) if you need 100 of those. I am looking to group with someone to reduce costs per container. You could also place an order online with hydroponics.net. I bought their injected molded containers that are strong and their shipping charges are varied and reasonable.

    Bookmark   July 9, 2013 at 10:42PM
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jim1961 Zone 6a Central Pa.

Thanks!

    Bookmark   July 8, 2013 at 5:38PM
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prairielaura(6b)

I've grown Home Run in hothothot Texas and in notnotnothot NC, and in both places it started slow and continued slow, with absolutely no issues. It is great in a large container. I used a huge galvanized metal trough meant for watering horses so that the flowers on a (short) trio of rosebushes were closer to eye level. Works great.
Those galvanized troughs from Tractor Supply can be primed and then painted to please. They come with a drain spigot which i leave permanently open. Makes a real nice small display garden...but not cheap at the initial invedtment

    Bookmark   July 9, 2013 at 10:20PM
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diane_nj 6b/7a

Ditto. Hot, hot, hot. I have been successful in pushing additionl water to get bloom size up during mid-summer. Otherwise, I deadhead, fertilize, etc., and wait for the fall flush.

    Bookmark   July 9, 2013 at 10:20AM
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seil zone 6b MI

Besides shrinking in size they can also shrink in petal count and change in color from high heat, drought or even too much rain. Cold can have similar effects too. I think every rose has it's own optimum temps and weather conditions. In some respects they are divas!

    Bookmark   July 9, 2013 at 10:35AM
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henry_kuska

Picture of infected leaves.

Here is a link that might be useful: link for above

    Bookmark   July 9, 2013 at 10:29AM
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racin_rose

This is the only bloom my super juvenile Cinco has had so far. My camera makes the color look funny, only reason I said something though is because that's what the buds looked like.

Whatever yours are, they're pretty anyway!

    Bookmark   July 8, 2013 at 4:42PM
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ratdogheads(5b NH)

Maybe Spanish Sunset?

    Bookmark   July 9, 2013 at 10:23AM
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bonny46(6)

Last year it was the same thing. Buds usually dry up and drop off before increasing in size or getting even close to opening. Should I prune it all off?

    Bookmark   July 8, 2013 at 3:41PM
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michaelg(7a NC Mts)

My Fairy has been wet for nine days and it is not showing those symptoms. Mad_gallica's suggestion that you may have a bad clone is sounding more and more likely. My plant has produced a large flush of nice little flowers every June for 30 years, then scattered bloom continuously into November.

    Bookmark   July 9, 2013 at 9:50AM
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Campanula UK Z8

While PH can more easily be altered to create a more alkaline base, I find the reverse impossible, at least for anything remotely long-term. I would probably be using a sequestered iron supplement to try to adjust the iron take-up in your rose (something such as Sequestrene)

    Bookmark   July 8, 2013 at 5:44PM
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roseblush1(8a/Sunset 7)

Thanks, Michael. I may have been posting misinformation. I am pretty sure I didn't check to see where the research was done when I was checking for alleopathic properties in pine trees.

Ooops...

Lyn

    Bookmark   July 9, 2013 at 1:35AM
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ElliotLi(9)

Ian, thanks! I'll try it.

Jeri, I'm in California central coast. In the morning and afternoon we usually have dense fog, guess that's exacerbating the disease. But my roses are in well ventilated area and can receive bright full sun at noon. I'll try to apply some fungicide. I just fear if I keep pruning those rust leaves I will eventually lose all its leaves!

    Bookmark   July 9, 2013 at 12:41AM
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jerijen(Zone 10)

Elliott -- That's not rust. It's not that serious, either. I'm in Ventura Co, and I have some of that. It'll be going away, soon. I don't spray, and it will go away.

Jeri

    Bookmark   July 9, 2013 at 12:48AM
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roseseek

Having (thankfully!) never seen RRD in person, I would say they look mighty suspicious. I have seen many Knock Outs and this doesn't look usual for them to me. Kim

    Bookmark   July 8, 2013 at 9:43PM
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anntn6b(z6b TN)

Yes.

Take a look at the buds - KO sepals are rather small and simple. Those sepals are much more serrated on their edges and many have 'leaf' like ends. In your last photo, the sepals are horrifically overgrown.

KO buds are seldom the least bit thorny on their stems; these fine dense thorns aren't on any non-RRV KOs that I've examined. Many sick KOs have the hyperthorniness on some of their stems below their recepticles.

I would expect your sick blooms to hold on to their petals; healthy KOs drop their petals cleanly.

    Bookmark   July 8, 2013 at 11:44PM
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AquaEyes 7a New Jersey

It looks like your rose may have reverted to rootstock, and from the pic, I'd guess 'R. multiflora'. This happens if the top growth dies off, and then the roots send new shoots which will not be the same as the budded top growth you intended to see. You can't really do anything about it other than digging the plant up and replacing it.

:-)

~Christopher

    Bookmark   July 7, 2013 at 10:44PM
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coco4444

Thanks very much to both for your quick responses!

    Bookmark   July 8, 2013 at 11:42PM
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jerijen(Zone 10)

Hi Racin -- There are quite a few Old Rose addicts up your way, so plenty of scope for learning more about those roses.

Jeri

    Bookmark   July 8, 2013 at 10:39PM
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racin_rose

Wow, thanks for the warm welcome everybody!

Reem, I love my job and I am, above all, happy to be employed. The deployments aren't the greatest, but there are a whole lot worse things I could be doing. Thanks for the kind words.

Thanks also to everyone for the complements on the mini. I have a few minis but that is by far my favorite now. It's such a good little plant already.

Jeri, I love OGR's and wish more of them were repeat bloomers, because I'm greedy. Because of my occupation I rent a home in the country so I'm apprehensive about planting anything that will get too huge and having to leave it behind if I move in 5 years. It's really a conundrum.

I love a lot of the Austins and have 4 total, but having gone to a local nursery and seen a good number of them IRL, I've become a lot pickier...especially since so many of them are either strange plants overall, and/or ate up with RMV!!! I have a Jubilee Celebration that shows mild signs of it but is a big grower and bloom machine, so who knows? I keep it in a big pot on the deck and prune it with its own clippers just to be safe.

I could go on and on but I'm afraid it will get too lengthy.

Thanks again everyone for the friendly welcome, I'm glad to be here.

-Kellyn

    Bookmark   July 8, 2013 at 11:24PM
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roseseek

I can only read what's on the lead page, but it states the 'deadly disease' is RRD. Kim

    Bookmark   July 8, 2013 at 8:26PM
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henry_kuska

It was Professor Ioannis E. Tzanetakis research group who firmly identified it as a virus.

Here is a link that might be useful: A discovery 70 years in the making: characterization of the Rose rosette vir

    Bookmark   July 8, 2013 at 9:42PM
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