Foo - Greenhouses?

Anyone have a greenhouse? I'm thinking of getting my wife one for her birthday, but wow there's a ton of them out there!

I don't even know what size to consider. This would be for a hobbyist and one I could take down and move every 2-3 years without too much damage to the thing.

Would I need to have a concrete slab to put it on or can you set them up right on the ground? Or a deck type structure, though that doesn't sound like it would work because of airflow.

Anything else I ought to consider?

We seem to have a bit of everything here, so....

That would be an awesome present for someone who loves gardening. I've considered getting one for my wife as well. I'll keep checking back for people's suggestions.

I rarely see green houses around here. I usually see either white houses or red brick houses. I don't know why you would want to move your house every 2 or 3 years, but so be it. It will be yours and you can do with it what you want. But I think a mobile home would be the best idea if you want to move it that much.

I built the greehouses I have used. No need for a concrete slab. mark our your area, dig out the sod, lay down weed barrier and cover in pea gravel. you can use pavers for a center walk between your benches. As to size, depends on what she wants to do. The ones I built were used for commercial bedding plant production and they were 20' x 150' or so. I would say 10 x 10 would be a decent hobby size, maybe 10 x 20.

I'll shot you some images of the one I built for my mother.
No you don't need a slab, a good bed of crush-a-run or pea gravel is ideal. There is a clear plastic roofing, similar to tin roofing and sold in home stores. I knocked together a small stick frame shed, covered the north wall and its two common corners with siding, and used the corrugated plastic on the roof and south wall, a storm door for access. The corrugated plastic is sold with roof caps, same as with tin roofing, and shaped strip insulation to plug air holes.

For a temporary green house, when we used to own a nursery we would make them out of large aluminum hoops and plastic roll sheeting. We would prepare a bed of gravel for the floor, and then erect the hoops (acted as tent poles) and cover them with two layers of plastic roll sheeting (equates to the fly of a tent). Plywood was used to cap the ends and a storm door was cut into one of the plywood end walls.
We used two layers of plastic because inside the greenhouse we would cut a hole in the first layer of the sheeting and install a bathroom fart fan so its exhaust would fill the gap between the two sheets like a balloon. This gave a layer of dead air for insulation. Cheep, quick to build and quick to tear down/move.

Skiahh,

The link below has videos on erecting an hoop greenhouse.
http://www.hoopbenders.net/watchdemovideos.html

BTW, the drought has killed the nursery business here. I'll bet structures can be had for cheep on the used market.
http://www.mudrockandearth.com/HunterFoundObjects_files/image002.jpg

Nice video Allen. We used an electric bender to bend our hoops, but otherwise the houses I built were similar to yours. We would make our own doors, using carpeting as a full lenght hinge. Did not do the double poly thing, but it sounds great.

^^^

The local speed shop has a pipe bender for fabricating headers, exhausts, etc. We got them to do the bending for us and cut the pipes so they would break into three pieces (used sections of smaller pipe for "plug and sleeve" connecters). Made it easy to store a couple of "spare" greenhouses in the rafters of a shed.