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Hoya sp. Malang is a rare, locality-specific Hoya species collected from the Malang region of East Java, Indonesia. Like many Hoyas labelled with sp. (species), it has yet to be formally described by science but is already a favourite among collectors for its beautiful foliage and richly coloured blooms.
This tropical epiphytic vine produces thick, leathery, oval leaves that are medium to dark green, often with a matte texture and faint silver flecking. The leaf margins are smooth and sometimes slightly lighter, adding depth to the plants appearance. Under strong light, leaves may develop a soft bronze or reddish hue.
When mature, Hoya sp. Malang produces umbels of small, star-shaped flowers that are pale pink to peach, with a darker pink corona at the centre. The blossoms are waxy and sweetly fragrant, especially in the evening, making this a delightful plant for both foliage and flower lovers.
Thrives in bright, indirect light. A few hours of gentle morning or evening sun encourages flowering and enhances leaf colouring. Avoid harsh midday sunlight, which can cause scorching.
Water when the top 23 cm of soil feels dry. As a semi-succulent, it stores some water in its leaves, so it prefers drying out slightly between waterings. Reduce watering in winter when growth slows.
Temperature: Prefers 1828C. Protect from draughts and cold below 15C.
Humidity: Prefers moderate to high humidity (6080%), though it will tolerate typical household conditions. High humidity supports vigorous growth and flowering.
Use a chunky, free-draining epiphytic mix orchid bark, perlite, coco husk, and a little peat-free compost. Hoyas like to be slightly root-bound, so repot only every 23 years.
Feed monthly in spring and summer with a high-potassium fertiliser to promote flowering. Stop feeding during the cooler, dormant months.
Prune to shape or control length, and to encourage branching. Do not remove flower peduncles (spurs), as Hoyas rebloom from the same sites year after year.
A moderate grower, developing long trailing or climbing vines up to 12 metres indoors. Flowers appear on mature plants given stable light and warmth.
No flowers: Usually caused by low light or removal of flower spurs.
Yellowing leaves: Overwatering or poor drainage.
Leaf shrivelling: Prolonged underwatering.
Pests: Occasionally mealybugs, thrips, or spider mites.
Discovered in the lush forests around Malang in East Java, Hoya sp. Malang is a locality form prized by collectors for its reliability, resilience, and beauty. It combines the easy care of Hoya carnosa-type species with the tropical charm of rarer Indonesian Hoyas, making it a superb addition to any serious Hoya collection.
Quick Care Summary
Light: Bright, indirect; tolerates gentle sun
Water: Allow topsoil to dry slightly; avoid soggy roots
Temperature: 1828C; never below 15C
Humidity: Moderate to high (6080%)
Soil: Chunky, airy, epiphytic mix
Feed: Monthly in spring/summer; high-potassium for blooms
Growth: Climbing/trailing vine; medium green leaves with silver flecks; clusters of fragrant pale pink to peach flowers