Hoya Kerrii like to live in bright sun (but can tolerate bright indirect light) in a well-drained pot, and don't need tons of water. Water every two or three weeks, or when soil is completely dry and the leaves start to wrinkle.
Of all the plants with heart-shaped leaves, there is perhaps no plant more beautiful than that of the Hoya kerrii. A notoriously slow grower, the plant is also known as ‘sweetheart plant,’ ‘Lucky Hearts Plant,’ ‘Wax Heart Plant’ and the ‘Valentine Hoya’ or ‘Hoya Hearts’ on account of its succulent-like green heart-shaped leaves.
Around Valentine’s Day, you’ll often see single leaf cuttings of this plant potted into sphagnum moss and sold as the “lucky-heart” plant. You should know that although these single leaves root, they are often planted into sphagnum moss and, due to the fact that they don’t have any node attached, they will never grow into a full plant.