Hoya rotundiflora, often referred to as the 'Square Leaf Hoya,' is a unique member of the Apocynaceae family. This epiphytic vine is distinguished by its flat, rectangular leaves with slightly scalloped edges, arranged in an opposite pattern along slender stems. In its natural habitat, it produces clusters of small, flowers that are pale green to white, emitting a mild fragrance.
Native to: Hoya rotundiflora is native to Thailand, where it thrives in tropical forests as an epiphyte.
Water: This species prefers consistent moisture without being waterlogged. Allow the top third of the potting medium to dry out before watering again. Overwatering can lead to root rot, so ensure the potting mix is well-draining.
Light: Provide bright, indirect light to mimic its natural understory environment. Direct sunlight can cause leaf scorching, while insufficient light may slow growth and reduce flowering.
Humidity: Hoya rotundiflora thrives in high humidity levels, ideally between 60-80%. If maintaining such humidity is challenging, consider placing the plant in a terrarium or using a humidity tray.
Temperature: Maintain indoor temperatures between 18-24°C. Avoid exposing the plant to cold drafts or sudden temperature fluctuations, as these can cause stress and hinder growth.