Caring for Alocasia Black Velvet: The Ultimate Alocasia Plant Care Guide. If you’ve recently welcomed an Alocasia Black Velvet into your home or are thinking about it, you’re in for a treat. This stunning plant, with its velvety dark leaves and striking silver veins, is a favorite among plant lovers. But like any beautiful plant, it needs the right care to thrive. I’m here to walk you through everything you need to know about caring for your Alocasia Black Velvet.