Hoya Callistophylla

Hoya callistophylla is a striking vining hoya native to Borneo, prized for its bold, deeply veined foliage. Each large, leathery leaf displays a dramatic network of dark green to near-black venation against a lighter green background — a pattern so precise it looks almost architectural. A collector's staple that earns its place in any premium tropical collection.

Care Guide

• Light: Bright indirect light; tolerates some morning direct sun. Avoid harsh afternoon sun which can scorch leaves.
• Water: Water thoroughly, then allow the top 50–75% of soil to dry before watering again. Drought-tolerant once established.
• Humidity: Prefers 50–70% humidity; tolerates average household humidity better than many hoyas.
• Temperature: 60–85°F (15–29°C). Protect from cold drafts and temperatures below 50°F.
• Soil: A well-draining chunky mix — orchid bark, perlite, and potting soil works well.
• Fertilizer: Balanced liquid fertilizer diluted to half strength every 2–4 weeks during the growing season.
• Potting: Prefers to be slightly rootbound; repot only when roots are actively escaping the pot.
• Toxicity: Toxic to pets and humans if ingested.