Yeah, shade is more important than heat, I'm beginning to think. I keep a shade cloth on my greenhouse from April 15 to Oct. 15, and that's WITH a good size beech tree shading part of it in the late afternoon.

I live in sunny Colorado and after one year with a little GH. I am wondering if the best place for one here is under a shade tree. I guess most would think me crazy for even considering it, but why out in the sun and then a shade cloth over it?

Natural shade will work; but, I think you need to think about what you plant. I just got lucky and haven't been using the greenhouse for much in the summer. Deciduous trees will allow early and late season sun along with the summer shade. I've been pruning the large apple tree and Saskatoon bush to control their growth and provide more light.

"I live in sunny Colorado and after one year with a little GH. I am wondering if the best place for one here is under a shade tree. I guess most would think me crazy for even considering it, but why out in the sun and then a shade cloth over it? "

Well, for winter, when the light is weak and the shade cloth is off and folded up in storage.

Though the deciduous trees don't have leaves in the winter....It is an interesting idea.

I'd still (in hot Maryland) put it in full sun, and the shade cloth is actually not much trouble, after all, and the plants do seem to love it. And it looks good; we call it the "Cloak of Invisibility."

You can get reflective or any other kind of shade cloth to any measurement at greenhouse suppliers and jerryrig it onto the roof for the season.

If a person could find the perfect spot on the south side of a shade tree where it was in the shade at noon in the summer and in the sun in the winter? Like a over hanging roof.?