Hoya obovata is a robust climbing plant, also known as the sweetheart or heart-leaf hoya, due to the large glossy leaves that are almost round or shaped like 'inverted' hearts, notched at the tips into 2 distinct lobes, very thick and leathery. The size of the leaves can be anything from about 6 to 15 cm in diameter and, 8 to 10 cm broad. Flowers to 15 mm across, comes in semi-pendent, flattened umbels, of 15 to 25 hanging from along the stems, the corolla is creamy white, yellowish-orange or pinkish-yellow, the corona is purplish red, dark orange brownish in the centre. There is also a variegated variety of this hoya that has absolutely gorgeous dark green leaves with lots of silver flecks. The variegation is pink when the leaves are young and the variegation on this hoya also seems stable. The leaf size is about the same as for the "green" one.