Hello! I grow a lot of South African bulbs and have been seeing a lot of South American bulbs and am curious about the care requirements. I live in a very hot dry part of Los Angeles. It's wet during winter but not too cold 35f lowest. What soil do South American bulbs like and how much sun can they handle? Do they like shade? The genera I'm interested in are Bessera, Eustephia, Eucrosia, Habranthus, Hippeastrum, Leucocoryne, Milla, Phaedranassa, Sprekalia, and Hymenocallis. Do they all have somewhat similar care or do they all have different requirements?