Hoya wayetii

Hoya wayetii is an evergreen tropical vine from the Philippines. Its native range lies in northern Luzon. It belongs to the Apocynaceae family and grows in wet tropical conditions. In the wild, it climbs as an epiphyte or lithophyte. These terms describe plants that grow on other plants or rocks. In cultivation, gardeners grow it indoors as a houseplant. Its stems can climb or trail, which suits several indoor displays.

The plant reaches about 1.6–3.3 feet [0.5–1 metre] in height. Its spread ranges from 0.3–1.6 feet [0.1–0.5 metres]. It takes five to ten years to reach mature size. The thick leaves grow in pairs along the stems. Each leaf has a narrow oval shape and waxy surface. Dark green leaves have a thin, dark red rim. The foliage stays on the plant throughout the year. Both climbing and trailing growth contribute to its form.

Fragrant burgundy flowers may appear toward the end of summer. Each flower has a star shape. Flowering is not a certain feature of every growing season. The leaves remain a feature when the plant lacks blooms. Hanging baskets give the trailing stems room to hang down. The plant also suits a conservatory or greenhouse kept warm. Its RHS hardiness rating is H1A, calling for year-round protection under glass. This rating indicates temperatures above 59°F [15°C].

For indoor care, give the plant bright, filtered light. It needs moderate to high humidity and a free-draining potting mix. RHS suggests peat-free loam-based compost with sharp sand, bark, and charcoal. Water freely while the plant grows, but let excess water drain. Keep the mix only slightly moist during the winter months. The roots do not tolerate soil that stays wet. RHS lists loam and sand as suitable soil types. It also lists acid, neutral, and alkaline soil reactions.

Mealybugs, glasshouse whitefly, and scale insects can attack this plant. RHS reports that disease is not usually a problem. New plants can be raised by layering in spring or summer. Another option is to take semi-ripe cuttings in late summer. These cuttings need bottom heat while they form roots. The supplied sources do not establish edible uses or toxicity.