Botanical Name: Hoya parasitica ‘Black Margin’ Common Name(s): Hoya Black Margin, Wax plant, porcelain flower Description: Hoya parasitica ‘Black Margin’ is a new wax plant variety with green textured, oval leaves with pointy tips and really cool dark purplish-almost black margins. It can produce clusters of creamy white flowers that are highly fragrant. Like most hoyas, these plants like to dry out a bit between watering. When the soil is dry and it's time to water, you should thoroughly soak the potting media. Water until all the soil is saturated and all excess water drains away through the drainage hole.