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Post by fischermans on May 30, 2008 19:44:03 GMT
Hello Mine looking good since March 2006 1  Also the seedlings i sowed last year. 2  Regards Alexander |
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Post by oliviermarthaler on Mar 20, 2009 23:01:02 GMT
Hi dr linearis freeks!
I've also been trying to grow this beautiful species overhere in Switzerland, living at 1000 metres above sea-level, we do have harsh conditions.
As always, surviving the winter is the toughest challenge... Am currently keeping hibernacula in frozen atmosphere outside (below freezing point most of the time since Nov till today March 21 (!). Others are in positive temps (1° to 5°C) in a veranda. I keep half of them in almost dry medium, and the other half overflooded by water (water is 1cm above the rim of the pots).
So far, little hibernacula seem to be in worse conditions where kept cold and dry medium, whereas underwater seems OK at the moment. The trick will be when I remove the extra water: rot must be expected...
Anyway, time has come for them to start growing. Will keep you informed how they develop. I wouldn't mind sending a couple of pics, but don't know how to do it!!!
Kindly,
OL
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Post by ICPS-bob on Mar 21, 2009 2:56:33 GMT
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sundewman
Full Member
Happy Growing!
Posts: 235
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Post by sundewman on Mar 21, 2009 4:41:56 GMT
I've never grown D. linearis, but it seems most people have trouble getting the plant through dormancy without fungal attack. After Barry described the relative ease that his plants go through dormancy, I thought the following info might help-
Rot and fungal growth can be controlled by setting your refrigerator to the optimal temp.
I've put D. filiformis and D. x hybrida through dormancy in my fridge. I wrapped the roots in moist paper towels, with the hibernacula exposed, and placed them in plastic baggies.
At first, when I used a temperature of 6 degrees Celcius (42.8F), I almost lost the dormant buds to rot and fungal attack. I figured cooler temperatures might discourage rotting, so I lowered it to 3 degrees Celcius (37.4F). 3 months later after forgetting about them, no rot or mold at all. They had also regenerated extra buds in the hibernacula from when they had rotted. They looked great and came out of dormancy easily.
This might explain why Barry had such success when others have nightmares when placing their dormant plants in the fridge.
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megs
Full Member
Posts: 12
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Post by megs on May 23, 2009 6:33:36 GMT
My ansver here might be premature as I have only grown the species for about 3 years. Anyway, here in Denmark I have no problems with it in my unheated greenhouse. Our winters have not been particular cold for the past many years, only down to around -8C, however, I do think that our daylenghts summer/winter follows what the species are use to in its naturel habitat. This might be the trick to correct cultivation?
I see no significant losses of plants during winter and the species are kept inside the unheated greenhouse as all of my hardy sundews are kept here. Max summer temps around 28C. Standard sand/peat 50% and in summer water up to the soil surface as I also do for intermedia, rotundifolia, anglica and their hybrids.
Martin
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