How to winterize rose trees (tree roses?)?
This year I could not resist and rescued couple of tree roses (or rose
trees?) from our local K-Mart. If you have any doubt as to what I am talking about, it is a rose bush on top of about 2' long "trunk". The roses revived, they bloom beautifully - but I put them in large ornamental pots, one plastic and the other one ceramic. I am reasonably sure they cannot stay in the pots for the winter. Do I have to winter them over in the ground? Any hints? Directions? I have never had potted roses before, never mind the tree variety. Please help.....? - Maggie's Mom. |
How to winterize rose trees (tree roses?)?
"Maggie's Mom" wrote in message news:7jRMc.27777$8_6.1918@attbi_s04... This year I could not resist and rescued couple of tree roses (or rose trees?) from our local K-Mart. If you have any doubt as to what I am talking about, it is a rose bush on top of about 2' long "trunk". The roses revived, they bloom beautifully - but I put them in large ornamental pots, one plastic and the other one ceramic. I am reasonably sure they cannot stay in the pots for the winter. Do I have to winter them over in the ground? Any hints? Directions? I have never had potted roses before, never mind the tree variety. Please help.....? - Maggie's Mom. It depends entirely on where you are, of course. I have at least 8 large potted roses including one of those cheesy tree roses, also in a ceramic pot. I did not winter them in the ground, nor any of the other potted roses. Most of my other potted roses are going on their 3rd year in pots and they're doing find w/ no protection ever. However, I'm in Seattle and we get a very mild winter with no snow and barely any temps in the freezings. If you get a cold winter with sustained freezing temps protect the tree roses the same way you'd protect any other potted (or planted roses) in your climate range. JimS. Seattle |
How to winterize rose trees (tree roses?)?
"Tree Roses" are usually double grafted, at the root stock and at the top of
the "trunk". Depending on your climate they may need to be protected from freezing either or both of the grafts. The top graft is the most exposed and susceptible. When they are grown in containers there is very little thermal mass to buffer temperature changes and the root stock graft is also subject to damage from short periods of below freezing temperatures. I get winter temperatures as low as -20F, in this climate they are either 'annuals' or MUST be kept in the basement or garage to survive. Tim "Maggie's Mom" wrote in message news:7jRMc.27777$8_6.1918@attbi_s04... This year I could not resist and rescued couple of tree roses (or rose trees?) from our local K-Mart. If you have any doubt as to what I am talking about, it is a rose bush on top of about 2' long "trunk". The roses revived, they bloom beautifully - but I put them in large ornamental pots, one plastic and the other one ceramic. I am reasonably sure they cannot stay in the pots for the winter. Do I have to winter them over in the ground? Any hints? Directions? I have never had potted roses before, never mind the tree variety. Please help.....? - Maggie's Mom. |
How to winterize rose trees (tree roses?)?
"Tree Roses" are usually double grafted, at the root stock and at the top of
the "trunk". Depending on your climate they may need to be protected from freezing either or both of the grafts. The top graft is the most exposed and susceptible. When they are grown in containers there is very little thermal mass to buffer temperature changes and the root stock graft is also subject to damage from short periods of below freezing temperatures. I get winter temperatures as low as -20F, in this climate they are either 'annuals' or MUST be kept in the basement or garage to survive. Tim "Maggie's Mom" wrote in message news:7jRMc.27777$8_6.1918@attbi_s04... This year I could not resist and rescued couple of tree roses (or rose trees?) from our local K-Mart. If you have any doubt as to what I am talking about, it is a rose bush on top of about 2' long "trunk". The roses revived, they bloom beautifully - but I put them in large ornamental pots, one plastic and the other one ceramic. I am reasonably sure they cannot stay in the pots for the winter. Do I have to winter them over in the ground? Any hints? Directions? I have never had potted roses before, never mind the tree variety. Please help.....? - Maggie's Mom. |
How to winterize rose trees (tree roses?)?
"Maggie's Mom" wrote
[snip] Do I have to winter them over in the ground? Any hints? Directions? I have never had potted roses before, never mind the tree variety. Please help.....? - Maggie's Mom. I have an Angel Face patio rose (about the same size as your tree roses) planted in one of those fake (lightweight) half barrels - less than 10 gallon capacity, at a guess. It sits on my small front porch [concrete slab] and has done well the last two "winters", including one early spring frost that killed several of my established roses in beds. Bottom line: Your tree roses should do fine in pots as long as there is room for their roots, and as long as they get some winter protection - whether close to the house, in the garage or etc. I've never kept roses inside for any length of time so I don't know how the lack of sunshine would affect them. You might ask the other posters about that. I think you would also need to be careful about watering - not over- or under-watering over the winter. I solve that problem by letting water drain through. That way I can over-water without actually over-watering. :) But doing that indoors could be a problem. Gail near San Antonio TX Zone 8 |
How to winterize rose trees (tree roses?)?
"Gail Futoran" wrote I have an Angel Face patio rose (about the same size as your tree roses) planted in one of those fake (lightweight) half barrels - less than 10 gallon capacity, at a guess. It sits on my small front porch [concrete slab] and has done well the last two "winters", including one early spring frost that killed several of my established roses in beds.... near San Antonio TX Zone 8 Looks like zone 8 is good for potted roses. Unfortunately I live in a zone 5B - Pueblo, CO. We do get rather cold winters: 20F below and worse. I have already asked some of the local nurseries, and I got lots of answers. Problem is: the question was only one, and the answers were ALL different. And none of the answers seem to make any sense.... :o( I knew I had to protect the roots of my rose trees, and now I know I have to protect the top graft. Will it be sufficient if I just plant the roses somewhere where they would normally like to grow, and if I wrapped the stem and the top graft with something? Shipping bubble wrap maybe? If not, than what? I would hate those roses to be "annuals" because of my inexperience.... they are so beautiful. Thanks for all the suggestions, and I will be waiting for more. Any help is appreciated. Hopeful in Pueblo CO zone 5B - Maggie's Mom. |
How to winterize rose trees (tree roses?)?
It's not that they must be protected from freezing. Even roses planted in
the ground will 'freeze' if the temperature is low enough for a long enough time. The primary goal of winter protection for roses is to slow the rate of temperature change. The ground provides a large thermal mass or insulation if you like, that takes a long time to change temperature. If there is no heat source, all the insulation in the world won't prevent freezing. All plants produce a natural anti-freeze, glycols, as part of their matabilism, the actual freeze point of any plant tissue depends on these glycols. The general rule of thumb for roses is the tissue will freeze at approzimately 27F. If a rose or most other plants, have a chance to become dormant with a gradual temperature drop, they are much less susceptible to freeze damage. There ARE ALWAYS exceptions. To winter protect a 'tree rose', both the root graft and the trunk graft need to be 'insulated'. One way to accomplish this is to literally bury the plant, horizontally, in the ground and cover it with at least 6" of soil. Just a little science and logic, Tim |
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