Hoya clemensiorum – Textured Foliage from the Rainforests of Borneo
Hoya clemensiorum (T.Green) is a rare and striking climbing epiphyte, native to the tropical rainforests of Sabah, Borneo. Known for its deeply veined, crocodile-textured leaves, this species has become a cult favorite among serious Hoya collectors. Slow-growing but visually stunning, it brings a bold jungle flair to bright indoor spaces.
Standout Traits of Hoya clemensiorum

 
Remarkable Leaf Texture: Elongated, leathery leaves with raised, dark green venation resembling carved stonework – up to 40 cm long.
 
Climbing Growth Style: Grows as a vining epiphyte, best trained on a moss pole or hanging basket for aerial root support.
 
Rare Blooms: Clusters of small, waxy, star-shaped flowers with a musky citrus fragrance. Flowering indoors is rare and slow to initiate.
 
Native Habitat: Endemic to lowland forests in Sabah (East Malaysia, Borneo), thriving in high humidity and dappled light.
 
Taxonomic Notes: Described by Ted Green in 1991, formally named Hoya clemensiorum (T.Green), as verified via Tropicos and GBIF.

Indoor Care Guide for Hoya clemensiorum

 
Light Requirements: Prefers bright, indirect light. Avoid strong midday sun to prevent leaf scorch.
 
Watering Routine: Let the top 2 – 3 cm of substrate dry out before watering. Always water deeply and allow excess to drain.
 
Humidity Needs: Keep air humidity between 60 – 80%. Boost with a humidifier or pebble tray in drier seasons.
 
Best Substrate: Use a chunky, well-aerated mix – orchid bark, perlite, and coco coir ensure healthy roots.
 
Fertilization: Feed monthly with a balanced liquid fertilizer at half strength. No seasonal break needed.

Troubleshooting Tips for Hoya clemensiorum

 
Yellowing Leaves: Usually a sign of overwatering. Check that the pot drains freely and allow more drying time.
 
Root Issues: Rot can occur in compact or soggy soil. Switch to a looser mix and ensure aeration.
 
Common Pests: May attract mealybugs or spider mites in low airflow. Treat early with neem oil or insecticidal soap.

What the Name Hoya clemensiorum Really Means
The genus Hoya honors Thomas Hoy, an 18th-century English botanist. The species epithet clemensiorum is the Latin genitive plural form, named after botanists Joseph and Mary Strong Clemens for their contributions to the study of Borneo’s flora.
Answers to Your Questions About Hoya clemensiorum

 
Is Hoya clemensiorum easy to care for? It’s slow-growing but not demanding – just keep humidity high and avoid extremes in watering.
 
Can it handle direct sun? Not recommended. Filtered morning light is fine, but protect from harsh midday rays.
 
Is it safe around pets? Hoyas are not classified as toxic, but the sap may cause irritation – best to keep out of reach.

Want to level up your plant shelf with something bold and textured? Order your Hoya clemensiorum now and let it climb into the spotlight!