Cold Frames

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Lap60 Edmond, OK Sep 28, 2009

Can I overwinter my Boston Ferns and Asparagus Ferns in a cold frame? I live in the midwest.

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ecrane3 Dublin, CA(Zone 9a) Sep 28, 2009

I don't think that'll be enough--I suspect you'd need a supplemental source of heat as well. Probably better to bring them inside unless you've got a greenhouse that you can heat.

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Jim41 Delhi, LA Sep 29, 2009

Boston fern's freeze real easy. Our asperagus ferns, we leave under the carport all winter. If the temp is going to be in the twenties, I through a sheet over them and then an old plastic tarp. We have some growing in the yard and the cold kills them back but they come right back the next spring. A friend of ours, cuts her Boston ferns off to the ground and moves them to the south side of the house and puts hay over them. Come back every spring.

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