You know I don't think sun is all that important to some Amaryllis (can't say for all). My mother grew some for years that just bloomed like crazy. They were mixed in among much larger plants and the house and a brick wall also blocked the sun from the plants. Still, when I transplanted some earlier last year I moved some of them to more sun. Most of the ones I have are in pretty much shade areas, and they seem to do fine. I just felt more sun would be worth trying to try and get them to multiply faster.