22,795 Garden Web Discussions | Roses

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michaelg(7a NC Mts)

All the new growth, or just some of it? If the latter, check to see if the bad shoots all stem from the same basal cane, which has something wrong near the base.

If the whole plant is collapsing, voles may have eaten the roots. Rock the plant to check anchorage and probe for voids in the soil.

Then there are a few wilt or blight diseases that are uncommon but quite destructive. These would need to be ID'd by a plant pathology lab. I don't know if NYC residents have access to the NY agricultural / cooperative extension service. Check the county listings.

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jjpeace (zone 5 US/zone 6 Can)

Oh we got those rabbit problems a few years ago until my dad barricaded the whole yard with chicken wire from top to bottom. That solve the problem. Sure the fence is an eye sore but at least we get to admire the roses and vegetables...lol.

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Michaela .:. thegarden@902 .:. (Zone 5b - Iowa)

You know jjpeace, the chicken wire is perfect for clematis to climb! We are building a fence out of wood posts and chicken wire this summer to keep the rabbits and my dogs out. The only thing that makes me okay with this ugly fence is that I can grow clematis on it!

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jjpeace (zone 5 US/zone 6 Can)

Speaking of Peace, I am praying it will survive. It has a little green cane but no buds yet. It is a strong plant and it is at least 3 years. I can find Peace at most nurseries but I hoped it would survive. I bought Chicago Peace and planted next to it hoping it will compliment it.

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canadianplant

My peace sent out a shoot last year. Yours may do the same

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summersrhythm_z6a

I grew a Eden in a pot for about 3 years, then I made a mistake put it in the ground without covering the bud union. Now I have 23 rose trees in pots, they are doing great. If you're in a warmer zone, you'd need a huge pot like Jeri has mentioned. What about a rose tree? :-)

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erasmus_gw

I used to have a very large Lavender Lassie in a big pot. I'm not sure how big the pot was..maybe 26 or 30". It rooted through the hole. I have a Constance Spry in a pot by a fence. It's in a dry area crowded by tree roots so I put it in a pot. It too has rooted through the hole and is a pretty big plant now. I'm finding that it's a pretty good way to get a plant established in a dry area. I don't water that Constance Spry for the most part. I think I used to water it before it had sent roots through the hole.

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jjpeace (zone 5 US/zone 6 Can)

Oh, this is a coincidence, I live in the same town as you rose_crazy_da. Thanks for the info. Maybe they will have it later.

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poppy_pa_6b

Has anyone in the Northeast/PA seen these at WF's? I had heard they'd be showing up around mother's day.

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rosecanadian

Funny thing about my Frederic Mistral - it started to smell like green grass (to me). I don't like the smell of grass at all. All summer - smelled like grass. So I gave it away. Weird - especially since I liked the smell before.

Carol

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fragrancenutter(Zone 10b)

Not sure what happened to your FM Carol but mine smells like old rose perfume concentrate.

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scottabartlett

Thanks!

That was one of my fears about peat moss, but I wetted the mixture before mixing it with the top soil, sand, and compost manure.

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scottabartlett

I'm thinking of getting a RapiTest kit, or calling my local county soil and conservation branch to see if they can do a soil test.

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summersrhythm_z6a

I have a Darlow's Enigma, it's pretty much cane hardy. and in blooms all the time. I am in zone 6a.

http://www.helpmefind.com/rose/l.php?l=2.1455

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sam 5a Adirondack

I have Viking Queen . Works for me.

Excelsa, Dorothy Perkins, and White Dorothy are the roses that are used at the Elizabeth Park rose garden In Connecticut. Those are huge! Debutante is a fragrant version.

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nikthegreek(9b/10a E of Athens, Greece)

Michael, there are rose species native to alkaline soils as my local R. sempervirens can attest to. Garden Roses and rootstocks being the mixed bloods that they are their response to soil pH vary widely. Of course having a pH of around 6-6.5 will keep almost any rose very happy but, compared to some other plants, they tolerate variations pretty well.

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jerijen(Zone 10)

Our water varies between 8.3 and 8.5. Our soil probably isn't much better.

Roses with a multiflora background come here to die. So do most rugosas. Teas and Chinas tolerate our conditions well, and so do most Noisettes. That's handy, since those are the roses that best deal with our weather conditions.

For US, the pH of our soil/water is a major consideration in selecting roses.

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zack_lau z6 CT

When did your roses last bloom? Many roses take a rest between blooms.

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jerijen(Zone 10)

The non-blooming canes . . . where do they originate???

How old are the plants? Weeks? Years? (How many?) Decades?

When did you last see them bloom?

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trippstadt62

I'll look. Thanks.

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jim1961 Zone 6a Central Pa.

Yep that looks like Rose Slug damage...

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sultry_jasmine_nights (Florida 9a)

Heirloom Roses and Edmonds lists it hardy to zone 6. It is a newer rose so it probably hasn't been experimented with a lot in cooler climates either.

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jasminerose4u, California 9b

Jasmine, I might not make it to the Huntington until next year, but I'll make sure to take a photo the next time I see Raspberry Cream Twirl. It will be interesting to see how much it grows in that time.

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jerijen(Zone 10)

That looks like blackspot to me.

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zack_lau z6 CT

FWIW I don't see it on roses that are regularly sprayed with a fungicide--while I have seen it on roses that haven't been sprayed.

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michaelg(7a NC Mts)

If it suddenly appears on several parts of several plants, it's herbicide. RRD normally starts on one cane.

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msdorkgirl(11)

Keeping them watered in Oahu is no problem (I think we've had rain every night for the past two months) ... frustrating since now I have to worry about black spot In addition to thrips and now the roundup damage. Luckily half my roses are in another part of the property.

I will be watching out for new canes and what kind of growth they have, hoping I won't need to dump any that I really want to keep.

Its Roundup because it's affected all the plants at the same time in that same area with those spindly new growth things but it's not an explosion of new growth. The growth too is red on some of them but eventually turns green.

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michaelg(7a NC Mts)

In blackspot country, water when the leaves will dry completely before dark, not in late evening. I water in the morning for this reason.

Don't use sprinklers in the sun, especially with high temps or low humidity, as a significant amount of water will evaporate before it sinks into the soil.

In areas with powdery mildew but little or no blackspot, overhead watering in the wee hours helps to control mildew.

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seil zone 6b MI

Michael is giving you the ideal situations. However, in practice I water when I can and that's usually in the afternoon, unfortunately, when it's hot. If you have a timer system that's great. You can set the times to the ideal but when you water by hand you just do the best you can and hope for the best. I really do try not to water in the evening but sometimes it's a choice between that and no water at all. And then Mother Nature never times her watering at all, lol!

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