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janezee · December 27, 2011

I've really enjoyed reading this whole thread. I have a question for those who have tried something like this, if there are any.
If I can get my 4'x6' unheated greenhouse put together in time for seed starting, I plan on using rope lights under my trays, which will be held above the lights by cookie sheets sitting on top of 1"x2" strips of wood. I have a probe instant read thermometer to check on the soil temp.
My question is: Do you think that I can combine heat under the seeds and very cool temps (30-50*F) with no additional lighting (here in the PNW at the 48th parallel) and get sturdy seedlings? How have yours turned out?
All opinions are welcome. Thanks.

December 27, 2011	#57
janezee Tomatovillian™ Join Date: Dec 2011 Location: Whidbey Island, WA Zone 7, Sunset 5 Posts: 931	I've really enjoyed reading this whole thread. I have a question for those who have tried something like this, if there are any. If I can get my 4'x6' unheated greenhouse put together in time for seed starting, I plan on using rope lights under my trays, which will be held above the lights by cookie sheets sitting on top of 1"x2" strips of wood. I have a probe instant read thermometer to check on the soil temp. My question is: Do you think that I can combine heat under the seeds and very cool temps (30-50*F) with no additional lighting (here in the PNW at the 48th parallel) and get sturdy seedlings? How have yours turned out? All opinions are welcome. Thanks.