I should probably add that there is a good amount of light on each side of the box in the morning/evening so it's not in complete darkness the whole day. The box is sitting on a north facing wall, but it does not get direct sunlight.

I grow Agave bracetosa , nolina lindheimeri, aloe saponaria , aloe grandientata, manfreda, some dykias in the shade. Graptopetalum parguayense takes a good bit of shade in Texas. I also grow my echeveria with a good bit of shade. The shade is fairly bright under oak trees and we have a good deal of heat. I do not know if this is as shady as you are talking about.

Sedum kimnachii grows well for me on the north side.

{{gwi:502055}}

Sansevieria would do wonderfully in those conditions, as would many shrubby Kalanchoes.

thanks folks

Those are all great suggestions. I'd like to add one.
I keep the majority of my Haworthias in full shade. They're outside in bright, indirect light and the only direct sun they get is what shines through the fence gaps. I built a shelf above them that blocks the summer sun. They love it.

Well here goes, I've found that "my" cacti & succulents that get mostly shade and bright light but no direct sun light do fine, they seem to take on different shades of green colors , they're shapes also vary and just like all these plants that take on looks of there own look interesting and unique.

If you still want light, set up some mirrors to deflect the sun, then whatever happens next is sure to be totally unique, but I think you'll like the shade results, maybe.

Greg

I have an agave attenuata in full shade, it never gets sun - although it is a bright spot, just no direct sun at any time of the year. It is doing wonderful and it is huge and really healthy and green. I water it about once every 3 weeks.