5.D. Hoya Davidcummingii yellow 6329

🌿 Hoya davidcummingii is an adorable miniature epiphytic wax plant in the Apocynaceae family, native to the tropical island rainforests of the Philippines. It was named in honor of Australian plant explorer and Hoya authority David Cumming, who discovered it in the 1990s. It is celebrated as one of the most free-flowering, beginner-friendly Hoyas in cultivation, making it a beloved gem for both novices and seasoned collectors alike.
FUN FACT
This species is named for David Cumming, an Australian hoya collector who found it near Lake Bulusan, a volcanic lake in the Philippines, and it was formally published in 1995.
FOLIAGE AND GROWTH HABIT
This compact species features a semi-shrubby, trailing, and gently twining growth habit that looks spectacular cascading from hanging pots or trained around a small wire trellis. The leaves are small, measuring approximately 4 to 6 centimetres long by 2 centimetres wide, with an elliptical shape, smooth margins, and pointed tips. They are smooth, thick, and leathery, displaying a vibrant bright olive-green hue with subtle darker veining. Under high light, the leaves maintain a tight, dense formation along slender, flexible stems.
FLOWER DETAILS
Hoya davidcummingii is renowned for blooming easily and repeatedly throughout the year, even on young cuttings. It produces petite, rounded umbels of 10 to 20 star-shaped flowers with waxy, reflexed corollas in luminous shades of golden yellow, soft salmon-peach, and deep coral, centered with contrasting ruby-red and yellow coronas. The flowers produce droplets of sweet nectar and perfume the surrounding room every evening. Never remove old peduncles (flowering spurs), as new flower clusters repeatedly emerge from the same spurs year after year.
CARE INSTRUCTIONS
🌞 Light: Prefers bright indirect light for 6 to 8 hours daily. A little gentle morning sun encourages frequent, heavy flowering. Protect from scorching midday direct rays, which can fade foliage color.
💧 Water: Allow the top half of the potting soil to dry out thoroughly between waterings. Use the soak-and-dry method, ensuring all excess water drains away. Hoyas are highly prone to root rot if overwatered.
🌡️ Humidity: Thrives in moderate to high humidity between 55% and 75%. It adapts well to average home humidity (around 45%), but elevated humidity stimulates faster stem growth and prolific flowering.
🪴 Soil: Plant in a very chunky, highly aerated potting mix consisting of orchid bark, perlite, pumice, charcoal, and a small portion of peat moss or coco coir to replicate tree bark conditions.
🏺 Potting: Select a small container (8 to 12 centimetres) with drainage holes. Hoyas flower much more reliably when kept root-bound in smaller pots. Repot only every 2 to 3 years when necessary.
🌱 Growth rate: Moderate grower. It establishes quickly, branching freely and producing numerous flower spurs within its first year of optimal indoor growth.
👩‍🌾 Fertilizing: Feed every 3 to 4 weeks during spring and summer with a balanced, liquid tropical houseplant fertilizer, or switch to a bloom-boosting fertilizer with higher phosphorus to encourage flower umbels.
🐾 Pet friendly: Yes. The ASPCA lists wax plants (specifically Hoya carnosa and Hoya kerrii) as non-toxic to cats and dogs, though Hoya davidcummingii is not individually evaluated by the ASPCA. The genus Hoya is considered safe and non-toxic, making it an ideal, worry-free flowering houseplant for pet owners.
WHERE TO PUT IT
Hoya davidcummingii is ideal for hanging planters near an east- or west-facing window, or placed on a bright windowsill, shelf, or plant stand where its delightful butterscotch evening fragrance can be enjoyed. Avoid dark interior corners, cold window drafts below 15°C, and drafty air conditioning vents that can cause flower buds (blast) to drop before opening.