I've had difficulty growing Scadoxus pole-evansii from seed here in central Indiana. They grow sporadically, going dormant at apparently random times and not in sync with one another. I've lost many seedlings during dormancy. There are still none that have reached bloom size, and my 25 original seeds are down to a half-dozen or fewer plants now. So I, too, would welcome advice on care and culture of S. pole-evansii far outside its habitat.
Jim
