Flower child I don't water nor fertilize my crinum. These are on the the south side of my house, full sun, but I have a cherry bark oak that will start shading it soon.
powellii Alba
Milk and wine and Sun Bonnet
Summer Nocturne
On the west side of my house my crinum are between tall gingers and do not bloom as much nor have near the size of these clumps. So sun is definitely needed.
My oxbloods have bloomed and died back, haven't looked for spider lilies yet.