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Hoya Black Dragon is a rare and dramatic cultivar in the Apocynaceae family, treasured by collectors for its bold, glossy foliage and unique flowers. Like other Hoyas, it is an epiphytic vine, originating from Southeast Asian tropical forests, where it grows along trees and rocks.
The plant produces thick, succulent-like leaves that are dark green, often so deep in tone they appear almost black, hence the name. The foliage is oval to lance-shaped, with a leathery texture that helps the plant store water and endure short dry spells.
When mature, Hoya Black Dragon produces stunning umbels of star-shaped flowers. The blooms are typically deep maroon to near-black with a glossy finish, accented by a contrasting corona in lighter shades of red or cream. They are not only ornamental but also fragrant, especially in the evening.
Thrives in bright, indirect light. Direct sunlight should be avoided as it can scorch dark foliage, though some morning or evening sun is beneficial for flowering.
Water when the top 23 cm of soil feels dry. Leaves will store some water, so the plant tolerates mild drought better than waterlogging. Reduce watering slightly in winter.
Temperature: Prefers 1828C. Avoid temperatures below 15C.
Humidity: Grows best in moderate to high humidity (5070%). Mist occasionally or place near a humidifier if air is very dry.
Use a chunky, free-draining epiphytic mix such as orchid bark, perlite, and coco husk blended with peat-free compost. Hoyas like to be slightly root-bound, so repot only every 23 years.
Feed every 4 weeks in spring and summer with a high-potassium fertiliser to encourage flowering. No feeding is required in winter.
Trim vines to control length and encourage branching. Do not remove flower spurs (peduncles), as Hoyas bloom repeatedly from the same sites.
A moderate grower, developing long trailing vines that can reach over 1 metre in time. Produces flowers once mature and when grown in bright, warm, and humid conditions.
No flowers: Often due to insufficient light or removal of flower spurs.
Yellowing leaves: Caused by overwatering.
Shrivelled leaves: Sign of prolonged drought.
Pests: Occasionally mealybugs, aphids, or spider mites.
Hoyas are commonly called Wax Plants because of their thick, glossy foliage and waxy blooms. Hoya Black Dragon stands out for its nearly black flowers one of the darkest blooms in the Hoya family making it a striking conversation piece in any collection.
Quick Care Summary
Light: Bright, indirect; tolerates gentle morning sun
Water: Allow topsoil to dry slightly; avoid waterlogging
Temperature: 1828C; avoid below 15C
Humidity: Moderate to high (5070%)
Soil: Chunky, free-draining epiphytic mix
Feed: Monthly in spring/summer, high-potassium for flowers
Growth: Trailing or climbing vine; glossy dark foliage; umbels of near-black fragrant flowers