I've been growing Cyrtanthus herrei for a few years after receiving small seedlings from Steve Hammer. They are now a couple of inches in diameter, in skinny deep tree pots (maybe 3"sq x 8" deep). Obviously they are nowhere near blooming, unfortunately. My growing situation is decidedly shady in most locations, and they do not seem at all bothered by these conditions. The biggest problem I have had is with mold/rot/mildew attacking the top of the bulb when it stays too wet. As the skin cracks when the bulb expands, moisture gets in and it gets very unhappy. This happened twice, once when I had the pots outside for their first summer, and subsequently in the greenhouse when I top watered. Peeling and drying helped them recover. This would probably not happen at all in a less humid climate like Ken's in San Diego, but east coasters should beware. I'm sure the bulbs would be much larger if they had stayed drier. That said, they seem to love wet feet, so keep them pumped up. They'd like some deeper pots, too, as the roots seem to fold up at the bottom. Here they appear to do most of their growth in the summer, as winters in the cold greenhouse slow them down a bit. Roy NW of Boston