I'm taking a short break from making cold frames, and while I take a breather I am interested to know what you think makes a great cold frame ? Here is my quick list :
* Wooden sides
* Hinged lid
* Removable lid
* Hard wood or pressure treated timber
* No screws when assembling (eg. using wing nuts instead)
* No glass
* Double glazed (twin walled polycarbonate)
* Wood not dipped in preservatives, so can be used for organic gardening.
* Reinforcements near lid to prevent warping
* At least two levels to prop open the lid
Any gardeners out there think I've missed something ?
Cold frames ... for the discerning gardener.