I recently got this plant from my granddad, he can't take care of it anymore. Neither of us can figure out what it is, but he used to travel a lot so it wouldn't surprise me if he brought it from somewhere afar. I'd like to know how to take good care of it, so some help would be great!
It's a Haemanthus albiflos (common: elephant's ear / tongue, paintbrush plant). It's native to South Africa.
You have a beautiful specimen here, good luck with it. It's rather easy to care for, given enough light and not too much water. For a start, see here or here.