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| I checked on 1 box of stored tubers last Wednesday and they looked fine, except that 2 of them had grown a few thin roots out of the tubers. The first one I saw had what appeared to be a root coming out of the front of it where the eyes should be, but it was far too thin to be a root.
I think the problem is the warmer temps we've been having in December and Jan. In December, the average high was in the high 40's to high 50's outside, and that means the temp in my side storage attic was also getting into the 50's during the day. But we've had some colder weather too, and the lowest it's gotten in there was about 38 degrees, bu that only happened once. I can control the temp at least a little by cracking open or closing the door leading into the side attic, which lets warmer interior air into the side attic, and since the 3 boxes of tubers are right against the door, they will stay relatively warm when I open it. But on average I'd say the temps in there have been 40 - 50 degrees F. What is the ideal temperature range? |
Follow-Up Postings:
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| If you want them to stay dormant, 45 degrees is a good temp. In an attic, when the sun comes out it will be way too warm for dahlias. They will sprout. Better to have them inside the house in a cool room than in an area where it gets very hot, even for a short period of time. Tubers can store OK in temps of 55-70F but will sprout a bit in the storage medium well before planting time. Put a remote temperature sensor in the attic and monitor it. They only cost $15.00 or so. |
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- Posted by HighlanderNorth Mid Atlantic (My Page) on Fri, Jan 13, 12 at 14:58
| Yeah I have a thermometer lying right beside the boxes of tubers, and since they are right against the door, I can look in and see the temperature at any time. Also, the way the roof is positioned, I dont get any sun hitting it in the winter, because the sun is so low in the sky and neither side of the roof faces the sun. It's 2:56 PM right now, and the temp in there is 45 degrees F. The temp outside is about 33 degrees. The temp differential is caused by heat from the house getting into the attic from below and from one side(my bedroom). |
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