Hoya callistophylla ‘Black Cat’, a unique cultivar of Hoya callistophylla, is known for its striking green leaves with pronounced dark green, almost black veins that create a "vein bleed" effect. Originating from tropical regions in Southeast Asia, especially Thailand, this cultivar is a collector's favourite due to its dramatic foliage. As a trailing epiphyte, it does well when grown in hanging baskets or allowed to climb, which showcases its leaf patterns beautifully in bright indoor spaces.

Native to

Hoya callistophylla is native to the tropical rainforests of Borneo, where it grows as an epiphyte on trees in shaded, humid environments. This origin influences its preferences for indirect light, high humidity, and well-draining soil.

Water

Hoya ‘Black Cat’ prefers the soil to dry out slightly between waterings. Water thoroughly when the top inch of soil feels dry, but avoid letting the plant sit in water to prevent root rot. During its winter dormancy, reduce watering frequency to keep the soil on the drier side.

Light

Bright, indirect light is ideal for this plant. It tolerates some direct morning sun but should be protected from harsh afternoon sunlight, which can scorch its leaves. A position near an east or north-facing window is excellent, or you can supplement with grow lights if natural light is limited.

Humidity

This cultivar thrives in moderate to high humidity, ideally between 50-70%. Use a humidifier or place the plant on a pebble tray to increase moisture, especially in drier indoor environments. Regular misting can also benefit the plant, promoting healthy leaf growth.

Temperature

Hoya callistophylla ‘Black Cat’ grows best in temperatures between 18-27°C (65-80°F). It is sensitive to cold, so avoid exposing it to temperatures below 10°C (50°F). A stable, warm environment without sudden temperature changes will help this tropical plant thrive indoors.