Does anyone have a blueprint for a small (box like) greenhouse that can be kept warm (above 50 degrees F) through cold winters? I would like to build one to keep plants in for the winter...

Are you thinking of something on the order of a cold frame?
https://www.google.com/search?...

Karen

Are you thinking something freestanding -- or maybe attached to your house, where you could open a window and provide heat that way? What zone are you in? What kind of plants specifically do you want to keep in it (tropicals, salad greens...) ? (I think we need more information to try to help )

Zone 5 and I am looking for something that could be unattached to the house. This would be for rooting succulents.

Yes, the word is cold frame! I could not find it. Thanks!

There are many online plans for different sizes and shapes. The simplest I've ever seen was bales of straw piled up and topped with a window.

https://www.google.com/#hl=en&...

Karen

Okay, I'll search for some plans. Thanks again!

We ordered ours from http://www.bettergreenhouses.c... and have really good luck with it. Seems like they serve all over the US so cold should not be a problem.

Hi drewtoby, You can find great greenhouse and equipment's from ebay for great prices. I have used rough greenhouses and their service is good. http://www.roughbros.com/comme...

Hope this helpful.

I once built a cold frame from old wooden windows. I used hinges and it worked perfectly for rooting cuttings and starting seeds.

And sometimes you can snatch up old windows for FREE on Craigs list

I just recently built a cold frame out of scrap lumber and two old windows I picked up beside the road.

It looks great!

And free is my favorite price! Looks good!

Good for you. Recycling at its best!

Well done project Seedfork!