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#1
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potted miniature roses
This is a fine NG! I've been lurking for awhile - now I'm quickly
dipping in: We live in the Southern California inland area of San Diego County where temperatures vary from 110 down to 20 degrees F. We have a few potted miniature roses in our back yard - and whenever the weather begins to give us signs it might freeze my wife dutifully covers the potted roses with sheets (overnight) in fear they will freeze. None of our other roses, not potted, planted all around the house, have suffered from below freezing temps... Are the miniatures more susceptible to freezing than non-mins? Would being in pots make a difference? thanks for info! Dick E. |
#2
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potted miniature roses
Dick E. wrote:
This is a fine NG! I've been lurking for awhile - now I'm quickly dipping in: We live in the Southern California inland area of San Diego County where temperatures vary from 110 down to 20 degrees F. We have a few potted miniature roses in our back yard - and whenever the weather begins to give us signs it might freeze my wife dutifully covers the potted roses with sheets (overnight) in fear they will freeze. None of our other roses, not potted, planted all around the house, have suffered from below freezing temps... Are the miniatures more susceptible to freezing than non-mins? Would being in pots make a difference? I'm in the University City area of San Diego so I don't get the temperature extremes that you do. Minis are no more susceptible to freezing than the big roses but it sure can't hurt to protect them as your wife does. As to being in pots, I would think that the location of the pots themselves would be more of an issue than the fact of their pottedness. (if that's even a word, heheh) Julia |
#3
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potted miniature roses
Dick E. wrote:
This is a fine NG! I've been lurking for awhile - now I'm quickly dipping in Welcome, Dick! : We live in the Southern California inland area of San Diego County where temperatures vary from 110 down to 20 degrees F. Here in Raleigh we get temps of 10 degrees F through about 100, so I know what you're talking about. Are the miniatures more susceptible to freezing than non-mins? Would being in pots make a difference? Minis would be more susceptible to freezing in the same way that an ice cube tray will freeze faster than a gallon jug of water, see what I mean? The smaller area of the pot, and the fact that it is not insulated by the ground is what might cause a problem in a prolonged freeze. I would worry about minis because I assume you have them in even smaller pots than I use for my potted hybrid teas--less than a 15 inch pot? On the other hand-- location is important in that your potted roses will stay warmer if snuggled near the house out of any wind where they can benefit from the 10 or so degrees warmer your heating will keep them. Your wife is smart to cover them, and if you're getting, say, 20 degrees for three days in a row, I might put them closer to the house. |
#4
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potted miniature roses
As a general rule Miniatures are more hardy than their
larger brethern. This is due to most minis being on their own roots and not having the fragile graft area. For the most part a 48 hour period of 20F will put roses into complete dormancy. If the temperature is fluctuating sufficently they will also pop right back. Containers don't provide the insulation of being in the ground which will have a significant temperature moderating affect. Were I to 'protect' container roses the strategy I would choose is to insulate the containers rather than the foliage. Depending on the variety, all roses are hardy to below 32F, the variety determines the temperature at which the natural anti-freeze will no longer protect from frost/freeze damage. New growth is always more tender that canes that have turned woody. The location can also have a significant impact on short term temperature extreems. If the pots are on the ground there is a lot of buffering from the mass of the earth, on the other hand if the pots are on an elevated surface there is no insulation and the entire container is exposed. |
#5
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potted miniature roses
Dick, I live in Zone 5 where our winters can get well below zero. As long
as I keep my minis well mulched (not necessarily "covered") they've done fine. Cheryl "Dick E." wrote in message ... This is a fine NG! I've been lurking for awhile - now I'm quickly dipping in: We live in the Southern California inland area of San Diego County where temperatures vary from 110 down to 20 degrees F. We have a few potted miniature roses in our back yard - and whenever the weather begins to give us signs it might freeze my wife dutifully covers the potted roses with sheets (overnight) in fear they will freeze. None of our other roses, not potted, planted all around the house, have suffered from below freezing temps... Are the miniatures more susceptible to freezing than non-mins? Would being in pots make a difference? thanks for info! Dick E. |
#6
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potted miniature roses
Again, thanks to all who responded to my question about mini potted
roses and low temperatures. I shared your responses w/ my wife and she was pleased at the suggestions - especially having to do with pot size and freezability, plus durability of mini roses. VERY helpful. Dick E. http://members.home.net/2dellis/ 1000+ episodes of doug&Sylvia |
#7
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The location also has a great impact on short-term temperature extreems. If the basin, there are a lot of grace period, from the mass of the Earth, on the other hand, if the pots on the elevated surface is not insulated and the entire container is exposed.
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