Why Plants Die
Theme
Theme

Fung Wax Flower

Hoya curtisii, Apocynaceae

Sources last read 13 September 2026.

Not yet rated How forgiving it is has not been judged here yet.

Also called Hoya Aloha, Porcelain Flower, Tiny Leaf Porcelain Flower Hoya and Wax Flower.

No photograph yet
No photograph of Fung Wax Flower has cleared this site’s licence and credit check yet.

Toxicity is partly unassessed

  • Not assessed for cats. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
  • Not assessed for dogs. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
  • Not assessed for people. NC State Extension publishes no harm statement for this plant. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.

What the sources say about its care

Light
Partial Shade
NC State Extension · read 13 September 2026
Water
Good Drainage, Moist, Occasionally Dry
NC State Extension · read 13 September 2026
Humidity

No source read publishes a humidity figure for any plant on this site. What follows is general guidance for foliage plants.

ASHRAE recommends indoor relative humidity between 30% and 60% 30–60%
Penn State Extension · read 13 September 2026
Soil
High Organic Matter; pH Acid (<6.0), Neutral (6.0-8.0)
NC State Extension · read 13 September 2026
Toxic to cats
Not on the ASPCA list. That is not a finding of safety.
ASPCA · read 13 September 2026
Toxic to dogs
Not on the ASPCA list. That is not a finding of safety.
ASPCA · read 13 September 2026
Harmful to people
No record of poisoning in people is listed for this plant; that absence is not evidence it is safe.
NC State Extension · read 13 September 2026

Routine care

Watering
Water thoroughly and let it dry out in between. A container large enough that the plant is not root-bound may hold too much water, leading to root rot.
NC State Extension · read 13 September 2026
Repotting
A new pot is advised every 2 or 3 years.
NC State Extension · read 13 September 2026
Propagation
Stem cuttings
NC State Extension · read 13 September 2026
Pruning
Cut out dead or leggy vines to promote new growth. Avoid removing the peduncles, since the plant flowers again from them for several years.
NC State Extension · read 13 September 2026

Move something and watch

Loading the simulator. It needs JavaScript; the care table above does not.

About the plant

Hoya curtisii is a species of flowering plant in the genus Hoya. It is native to Southeast Asia across Thailand, the Philippines, Borneo, and Malaysia. The species has easily recognizable foliage among Hoyas with small, pointed leaves and silver variegation. Like many Hoyas, it grows as a creeping epiphyte.

From Wikipedia, CC BY-SA 4.0 · read 13 September 2026

Native range
Thailand to Pen. Malaysia, Borneo, Philippines
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Thailand to Peninsula Malaysia, Borneo, and the Philippines
NC State Extension · read 13 September 2026
Climate
wet tropical
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Growth form
climbing epiphyte or lithophyte
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Epiphyte, Herbaceous Perennial; habit cascading, climbing
NC State Extension · read 13 September 2026
Size
Height 2–3 in; width 12–36 in
NC State Extension · read 13 September 2026
Flowering
Flowers pink, red/burgundy, white; blooms in summer
NC State Extension · read 13 September 2026

Other Hoya

More of the Apocynaceae family

Plants with similar care

Sources

What this does not cover

The figures above are what published sources say, not measurements of the plant in your room. They say nothing about your pot size, your water, the season, or how far from the glass the plant stands, and those decide more than any figure here does.

Humidity has no species figure because no source read for this site publishes one, and the only temperature published for this plant is a cold floor. The simulator fills those gaps with general figures for its kind of plant, marked as general and listed on how we read sources. Where a toxicity row says the plant was not assessed, that is the absence of a finding and not a finding of safety.

If something is already wrong, the diagnosis tool asks about the soil, the window and the watering, which is where the answer usually is.