Timing for Shrub Rose pruning - Zone 5
12 years ago
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- 12 years ago
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Can I manage a zone 6 or 5b rose in zone 5?
Comments (29)Dcrosby, You may be right at the edge of zone 5/6. Check the map here. If you are still zone 5, you just need to do some winter protection. It should be fine. Climate affects disease susceptibility. In dryer, more arid climate like AZ or CA, they don't have to deal with fungal disease like we do here in humid East Coast. When you read people's recommendations, you want to see where they live. Different climate gives different results to the same rose variety. Spraying for roses every week or every two weeks is not my kind of fun (anymore). I didn't even want to smell the blooms after I sprayed the bushes. Now I don't spray, most of my roses esp. Austins look naked by mid summer. Here is a link that might be useful: MA new plant hardiness zone map...See MorePruning Austins in Zone 5
Comments (5)Hi Terryjean - like Ginni, I prune many of my Austins back quite hard in the spring. I've found that even when the cane survives the winters (some are very winter hardy) they seem to bloom better when I prune quite heavily in the spring. They're also quite a bit more manageable, as many of them tend to get very tall by September and October. Some (i.e.. Jude the Obscure, Charles Darwin, Heritage) need serious summer pruning as well. Along with hard pruning, you might want to make sure they are still getting at least 6-8 hours of direct sunlight a day - sometimes surrounding trees put on enough growth over a 10 year period to throw a lot more shade than we realize. You might also want to take a look at your fertilizer program. Lots of tall growth with few blooms could be due to lack of sunlight, or too much nitrogen and not enough potassium and phosphate. Finally, you might want to check your canes very carefully. I was pleased that my Alnwick Rose overwintered so well, with lots of green cane in the spring. As a result, for two years I did very little spring pruning on it, but also had almost no bloom (and no sign of midge, so I knew that wasn't the problem). When I looked really carefully, I found some signs of canker, especially lower on the canes. So this July, I pruned the rose down to within 4" of the ground, removing all the canker with it. Alnwick Rose quickly sent up good new canes and by early September I had the best bloom I had ever had on it. Just a few ideas - hope one or more are helpful Good luck! Do try some of these things before you shovel prune those guys!...See MoreRose choices ( shrub type ) for Ontario Zone 5?
Comments (7)Pickering is a great place to look around at all varieties you might be interested in. I would stay away from Hybrid Teas because they aren't very disease resistant most of the time and are borderline hardy in Canadian winters. Some will make it, some don't and you have to protect them. Look at David Austins for repeat bloom and great varieties/colours. As far as Old Garden Roses (the heirlooms) ... Gallicas/Albas/Damasks are hardy but once bloomers. Noisettes/Chinas/Teas are not hardy this far North. Damask-Portlands are hardy and repeat bloom. Same with Hybrid Perpetuals. Rugosas are a good choice but can sucker pretty heavily (some people don't like that). The Explorer series is repeat blooming and bred for our cooler climate. Its a wonderful website to peruse for hours though ... and then you can come back and get more specific opinions on more specific roses :)...See MoreFirst time with roses.... Best time and way to prune and support?
Comments (23)I'm with Mad Gallica - you may always be wrestling with the weight of that rose, and I'd hate to see it damage your house. You might look into a freestanding arch to let it climb over, which means you can possibly contain the monster without having to cut all the canes back. If you want to reduce bloodshed and hassle, by all means it shouldn't hurt the rose, but you may not get much bloom in the next spring as a result. Michael is quite right (of course) that we aim under normal conditions to cut no more than 1/3 of the canes in a given year, and not to prune the main canes of a climber much at all, but stretch the canes sideways on the support. Obviously you're not dealing with normal circumstances however. My experiences with a freestanding Quadra may help you envision what you want from this rose. Quadra is another monster growing, very thorny climber that is hardy in our zone 5 (and beyond). I was lazy about setting up support in its first couple of years, so mine grew into the very wide bushy shrub like yours appears to be. I finally wrestled an 8' metal arch on top of Quadra and attached all the branches I could to one of the side panels without being too systematic (this took several hours and thick gloves and clothing, so brace yourself). You'll still need something to anchor the arch to the house, or the whole thing will tip over in the wind, wrecking that work tidying. However, now that I've done that work, I don't ever have to wade into Quadra to prune it other than clearing out the dead wood (if any) and encouraging new canes to fit into one side or the other of the arch. After a couple of years, it looks more like a traditional climber, once I pulled new canes to the sides, though there still are canes in the middle that fill in with blooms. Your New Dawn looks like my Quadra did when freestanding, so it's likely to work if you're game, and you can get it tidied up now. Of course, the severe pruning will save you bloodshed now if you want to go that route, but I'd still recommend something like this as you think about supports. Here's what Quadra looked like when I first wrestled it into the arch. You can't see, but it's anchored into the brick corner behind the arch with some supports my husband drilled into the brick. You can see on the left the green velcro-type strips I use to secure it to the arch in strategic places. These are available in most garden or hardware stores. I don't have a good "before" picture, but mine looked a lot like yours when I started. Good for you to be willing to work with this rose rather than just getting rid of it (not an easy prospect either). We're happy to help with ideas. Cynthia...See MoreRelated Professionals
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