Gathering a list of interesting gardens in Scotland that would be great if we could get a chance to go visit for visual research purposes. You can also find pictures from these places on flickr, etc.
http://jupiterartland.org/visit/opening (only open in summer :()
http://www.enchantedforest.org.uk/about-us/about (also think this has now ended, but we can find a photo gallery at this link)
http://www.scotlandsgardens.org/search.aspx?type=reguarly (just a list of gardens in Scotland open all year)