Hoya sp. Kalimantan 'Mini Coin' 6468

🌿 The Hoya sp. Kalimantan 'Mini Coin' is a compact, vining species from the diverse forests of Kalimantan (Indonesian Borneo), belonging to the Apocynaceae family. This relatively recent introduction to cultivation features perfectly round leaves that resemble tiny coins strung along delicate stems. It's considered an intermediate-level plant, requiring attention to watering and humidity but rewarding patient growers with its charming growth pattern. Fun fact: The name 'sp.' indicates this particular Hoya hasn't been formally described by botanists yet, making it a living mystery that collectors are still working to identify and understand.
FOLIAGE AND GROWTH HABIT
This Hoya grows as a trailing or climbing vine with thin, wiry stems that can reach several feet when mature. The leaves are the star feature—perfectly circular, about the size of a dime to nickel, with a thick, succulent texture. They emerge bright green and mature to a deeper olive tone with subtle veining. The foliage has a semi-glossy finish and firm feel, spacing evenly along the stems to create an elegant cascading effect.
FLOWER DETAILS
The blooms appear in small umbels of star-shaped flowers, typically pale pink to cream with darker pink centres. Each flower measures roughly half a centimetre across and carries a light, sweet fragrance most noticeable in the evening. The clusters have an almost porcelain-like quality that contrasts beautifully against the round foliage. This Hoya can flower multiple times per year once mature, usually in spring and summer. To encourage blooming, provide bright indirect light, maintain consistent watering during active growth, and avoid moving the plant once flower buds form—Hoyas are sensitive to position changes during bud development.
CARE INSTRUCTIONS
🌞 Light: Bright indirect light for 4-6 hours daily. Can tolerate some morning sun but protect from harsh afternoon rays. Low light will slow growth significantly.
💧 Water: Allow the top half of soil to dry between waterings. Water thoroughly when dry, roughly every 7-10 days in summer, every 14-21 days in winter. Bottom watering works well to avoid stem rot.
🌡️ Humidity: Prefers 50-70% humidity. Will tolerate average home conditions but grows more vigorously with added moisture.
🪴 Soil: Well-draining mix with chunky components—combine potting soil with perlite, orchid bark, and a bit of coco coir. Needs excellent drainage.
🏺 Potting: Shallow pot, slightly snug fit, terracotta or plastic with drainage holes. Prefers being slightly rootbound. Repot every 2-3 years or when roots completely fill the container.
🌱 Growth rate: Slow to moderate. Expect 15-30 cm of new growth in the first year. Can eventually reach 1-2 metres in length over several years with proper care.
👩‍🌾 Fertilizing: Monthly during spring and summer with diluted balanced liquid fertilizer (half strength). Skip fall and winter when growth slows.
🐾 Pet friendly: No. Hoyas contain compounds that can cause gastrointestinal upset in cats and dogs if ingested. Keep out of reach of curious pets.
WHERE TO PUT IT
This mini Hoya works beautifully in bright bathrooms where humidity is naturally higher, on shelves near east or west-facing windows, or in hanging planters where the vines can cascade down. It also does well in office spaces with good lighting and in bedrooms that receive morning sun. Avoid placing it in dark corners, directly beside heating vents or air conditioners, or in high-traffic areas where the delicate vines might get bumped or broken. Keep it away from drafty windows in winter.