I got one of this too! Been growing it with my phals indoors beside a very bright window. It has not bloomed either. Now what does it need to bloom? Does it need a cold dormancy too like the hippies? And what causes those browning leaf edges. Mine would do this also sometimes.
Oh one more thing...there is a smaller type that stays like just 6 inches tall. It has a very hairy leaf. H. albiflos has hair in it's leaf edges but this smaller kind has hair all over it's leaf surface and edge. What kind is this smaller one?
Sorry I'm late replying, I think the Haemanthus you describe mariava is H. pubescens. The H.albiflos is grown here in a cool, frost free glasshouse. The brown edges to the leaves is probably caused by leaf scorch.