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Fung Wax Flower

Hoya curtisii (HOY-ah kur-TISS-ee-eye)

Family: Apocynaceae Non-native Vine (vertical)

Hoya curtisii is an epiphytic and lithophytic climber from the wet tropics of Thailand, Peninsula Malaysia, Borneo, and the Philippines. The species epithet honors Charles Curtis (1852–1928), plant explorer and Superintendent of Gardens and Forests, Penang, Malaysia. It is a member of the dogbane family (Apocynaceae). The Porcelain Flower is a slow-growing, small, clinging vine with a climbing or cascading habit that grows up to 2 or 3 inches tall and 1 to 3 feet long. It has decorative leaves and very delicate, sweet-smelling flowers. The leaves are small, spade-shaped, waxy, and dark green with greenish-silvery variegations. The flowers are star-shaped clusters of 6 to 10 blooms of pink or red with a white center. Peduncles (the stalks that hold the flowers) are green and up to 2 inches long. The plant prefers bright, indirect light for a least 6 hours per day, but direct sunlight should be avoided since it will scorch the leaves. This plant is drought tolerant and is very sensitive to overwatering. It prefers to dry out between thorough waterings. The potting mix should be a well-drained mixture of rich organic matter with a slightly acidic pH. Consider adding perlite or vermiculite to a commercial houseplant mix to aerate the mix and prevent drainage problems. The recommended temperature ranges between 60 and 80 degrees Fahrenheit to facilitate growth. Humidity levels between 50 and 60% are recommended. A humidifier may be needed to maintain adequate room moisture levels. Repotting is recommended every 2 or 3 years. To encourage blooming these plants prefer to be somewhat rootbound. Prune to remove dead or leggy vines and to encourage new growth. Take care not to prune off the peduncles, as the plant reblooms from the same peduncles for several years. This plant is easy to grow and is low maintenance. It is a perfect vining plant for beginner gardeners. It can be grown cascading from a hanging basket or climbing on a moss pole in a container. Insects, Diseases, and Other Plant Problems: Insects affecting this plant include aphids, spider mites, scale and mealybugs. If the container does not keep the plant root-bound, it may hold excess water, which can lead to root rot. Overwatering and poor drainage will also result in root rot. More information on Hoya .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 46 attributes.

How it fits the guild

Guild layer 6 - Vine (vertical) Optimal soil pH Acid (<6.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Epiphyte; Herbaceous Perennial; Houseplant
Life cycle
Perennial
USDA zones
11a, 11b, 12a, 12b
Light
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
High Organic Matter
Soil pH
Acid (<6.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist | Occasionally Dry
Available space
Less than 12 inches
Mature size
Height: 0 ft. 2 in. - 0 ft. 3 in. | Width: 1 ft. 0 in. - 3 ft. 0 in.
Growth rate
Slow
Maintenance
Low
Canopy layer
6 - Vine (vertical)
Form & Appearance
Habit / form
Cascading; Climbing
Leaf color
Gray/Silver; Green; Variegated
Leaf type
Simple
Leaf arrangement
Opposite
Leaf shape
Ovate
Leaf margin
Entire
Leaf feel
Rough
Leaf value
Showy
Leaf size
1-3 inches long, 1-3 inches wide
Hairs present
No
Leaf detail
The leaves are small and measure between 1 to 2 inches long and are spade-shaped, waxy, dark green with greenish-silver variegations.
Flower color
Pink; Red/Burgundy; White
Flower value
Fragrant; Showy
Flower shape
Star
Flower size
< 1 inch
Flower detail
The flowers are fragrant and grow in clusters of 6 to 10 in a star-shaped pattern of pink or red petals with a white center or corona. It typically blooms in the summer months but that may vary depending on the growing conditions. The blooms can last for several weeks. Peduncles are green and up to 2 inches long.
Bloom time
Summer
Stem detail
Thin, hirsute stems
Wildlife & Ecology
Native status
Non-native
Origin
Thailand to Peninsula Malaysia, Borneo, and the Philippines
Play value
Easy to Grow
Landscape Use
Landscape location
Container; Hanging Baskets; Houseplants
Garden tags
#partial shade tolerant #easy to grow #houseplant #low maintenance #drought tolerant #interesting flowers #interesting leaves #container plant #fragrant flowers #hanging baskets #epiphytic #slow growing #trailing #cascading #herbaceous perennial #climber
Problems & Resistance
Resistant to
Drought
Propagation
Stem Cutting

Planted at Hunnicutt

Nobody’s planted this one yet.