Please help me understand what is causing my rose canes to snap off
Carla English
10 months ago
Every day I look out my window and see several rose bushes with canes flattened to the ground. Sometimes the canes are detached at the base, other times they are barely hanging on to the base and just touching the cane makes it detach. (I am talking about canes that are broken underground, not further up.) Here are pictures..... There is a small hole in the rose garden which I assumed is a chipmunk. Is this damage from an animal chewing ( although they are breaking under the ground) or is it from an animal pulling down the canes and snapping them? It's distressing because this spring I had to prune most of my roses to the dirt. This new growth is very important to me. Kind of stressed about this.
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Mischievous Magpie (CO 5b)
10 months agoRelated Discussions
rose canes look strange......please help id problem???
Comments (4)Have the plants checked for verticillium (or other) wilts if you are pretty certain it is not environmental or pests. Most areas have a plant disease clinic to which you can send your samples for testing. In the meantime, practice the highest level of sanitation: keep your tools sharp and clean, and disinfect pruners (and other tools) between plants; don't work on the plants when they are wet; etc....See MoreHey Anntn6b, could you please help me to understand?
Comments (8)Time to get past the colors. In my garden, I first see potential RRD from a distance. Remember how I said in your other post that roses are predictable? They are. If you see a mass of leaves within a huge rose, often it's just a birds nest. But occassionally it's witches broom, which happens when the back up leaf axil buds break, break again, and may break as many as 21 times. So that there's a cluster of new stems emerging from where there should be just one. Colors also draw us, especially when they are unexpected. And this is the hardest thing, because I wasn't used to seeing colors on the bushes...only on the blooms. That very deep reddish purple color comes with some roses.....it's always been there, we just haven't noticed it. But when it comes to Rose Rosette, we HAVE to look past the distant view. In my garden I have come to demand that there are three different symptoms before I say RRD (followed by expletives). Color is just one. And for color, I have asked on here (and will continue to ask) is anyone seeing that color on the same cultivar in my part of the country. Then I look at leaf symmetry, at leaflet symmetry, at the edges of the leaves, at the stipules (I place a lot of emphasis on stipules), on the spaces between leaves (internodal distances), on the buds themselves...some lack the hip part, some have too many rows of sepals and no stigmas...all sorts of things basic to the rose that go wrong. Aggierose, what you're going to have a real problem with is that your leaves are hitting serious summer heat too early. Those roses are putting out what are potentially good leaves (check the leaf edges), but the afternoon heat (I saw Dallas' temps yesterday and that was hot) is going to crisp up some leaves and stunt others. So you're going to get bushes with big healthy leaves from last month and early this month followed by skimpy leaves. (In my garden, the early spring leaves were small, followed by great honking big leaves from April when we had one great slow rainfall with 2" of rain and lots of N thanks to thunder storms, and now we are back to dry.) So we both are going to have to ignore leaf size and get to the up close look for the basics tield to the genetics of the rose. RRD messes up the rose morphology in ways that we can see, but we have to look closely. Sadly, this looking will continue as long as we grow roses. But knowledge means we can continue. We just learn more and share it....See MorePlease help diagnosis what is happening to my rose canes! (pics)
Comments (16)I also think it looks like canker. The organisms that cause canker are around all the time and enter through the "skin" of a plant when it is injured, cold can cause injury so that spring is a common time to see canker damage. If the canker encircles the stem, all nutrients are cut off and the stem above the canker dies. If the canker does not encircles the stem, then it should recover. I agree that pith will show if the stem is alive or not, but you must cut off the stem off to see the pith, it is that corky stuff in the middle of a stem, but now the cane is dead for sure. You can check for life under the bark with the scratch test, and as long as there is green under the brown, there is hope. It can be false hope because the stem could have died below where you scraped and the top of the stem as yet to die, that's why a stem can continue to produce foliage for a short time even after it is dead lower down. In my experience, you can kill a weak plant by pruning off all the canker damaged stems, when if you just left it alone, it be would be ok. You can always prune the stem later if it dies, If it is a vigorous plant then pruning it won't hurt, do clean your cutters after each cut. You do not want to spread it to healthy wood....See MoreWhat happened to my roses? Root stock snapped in half?
Comments (15)Well, two months later, it happened again. This time in the front yard (with zero gopher mounds in sight, goddamit). I want to recover this rose . What's considered "good potting soil" in your estimation for the purposes of recovering this rose? All my container plants are in Al's 5-1-1 mix (5 parts bark fines, 1 part peat, 1 part perlite). My plants do extremely well in this mix, and it's impossible to overwater, but I'm not sure if 5-1-1 is a good candidate for the recovery of this rose as it isn't the most moisture retentive mix out there. Do you think 5-1-1 would work? You prescribe that I water the damaged rose every other day (I'm guessing you're basing this on your personal experience, as we have the same climate). Is this really necessary? My experience of watering something a thirsty plant every other day in standard Miracle Gro potting mix, even in the summer, is that it leads to root rot. Then again, I have been known to have a heavy hand when I watering. Maybe watering this damaged rose every day in 5-1-1 would be the way to go for me? I already have lots of 5-1-1 mix prepared, but no bags of standard potting mix. Thanks...See More
Steve_M in PA
10 months agoCarla English
10 months agoSteve_M in PA
10 months ago
User
10 months ago
jim1961 / Central Pennsylvania / Zone 6
10 months agolast modified: 10 months agoRebecca (zone 4) , your story reminds me of Al bundy trying to catch a rabbit...lol
But I hope you get your problem figured out Carla English ...Wishing you the best!
Carla English thanked jim1961 / Central Pennsylvania / Zone 6User
10 months agolast modified: 10 months ago
Ryan Coastal LA Zone 10b
10 months agoCarla English
10 months ago
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