Hoya sipitangensis

Origin and Description:

Hoya sipitangensis is a captivating species native to the Sipitang region of Sabah, Malaysia, on the island of Borneo. Described in 2002 by botanists Kloppenburg and Wiberg, this Hoya is cherished for its small, semi-succulent green leaves adorned with silver splashes. When exposed to bright light, the foliage can develop a striking maroon or violet-red tint, adding to its ornamental appeal. The plant produces clusters of velvety white, star-shaped flowers with a distinctive red corona at the center, emitting a sweet fragrance that enhances its allure.

Natural Habitat:

In the wild, Hoya sipitangensis thrives as an epiphyte in coastal and lowland hill forests up to elevations of 300 meters. It is commonly found in semi-shaded areas, often climbing on trees or rocks, where it enjoys the warm, humid conditions typical of tropical rainforests.

Care Instructions:

• Light: Prefers bright, indirect light. While it can tolerate some direct sunlight, prolonged exposure may lead to leaf scorch. However, brief periods of direct sun can enhance the maroon coloration of the leaves.
• Watering: Allow the top layer of soil to dry out between waterings. Overwatering can lead to root rot, so it’s essential to ensure the soil is well-draining.
• Humidity: Thrives in moderate to high humidity levels, reflecting its tropical origins. Maintaining humidity levels around 60-80% is beneficial.
• Temperature: Prefers temperatures between 60-85°F (15-29°C). Protect it from cold drafts and avoid exposing it to temperatures below 50°F (10°C).
• Soil: A well-draining, airy mix such as orchid bark, perlite, and coco coir is ideal to replicate its natural epiphytic conditions.

Fun Fact:

Hoya sipitangensis is often compared to other Hoya species due to its similar appearance. Notably, some botanists consider it synonymous with Hoya walliniana, though distinctions are made based on flower size. Additionally, when exposed to sufficient sunlight, the leaves of Hoya sipitangensis can develop a vibrant maroon hue, adding a dynamic color change to its attractive foliage.

Species Note: It is worth noting that Christine Burton believes Hoya Sipitangensis and Hoya Walliniana are the same species, although they are listed separately in the book "A Guide to Hoyas of Borneo".