Why Plants Die
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Purple passion

Gynura aurantiaca, Asteraceae

Sources last read 14 September 2026.

Middling It gives warning, with time to act.

Also called Purple Passion Vine, Purple Velvet Plant, royal velvet plant, velvet plant and velvetplant.

Purple passion (Gynura aurantiaca), the whole plant.
Tubifex, CC BY-SA 3.0 · Wikimedia Commons

Toxicity is partly unassessed

  • Listed as non-toxic to cats by ASPCA.
  • Listed as non-toxic to dogs by ASPCA.
  • Not assessed for people. RHS 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

Sources file this plant under other names: Gynura aurantica (ASPCA). Citations below point at the name its source uses.

Light
Medium light 100–150 fc
Clemson Extension · read 13 September 2026
Partial shade
RHS · read 13 September 2026
Water
Moist but well-drained
RHS · 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
Temperature

How cold this tolerates, not what it prefers. No source read for this site publishes a preferred range for a plant indoors.

H1B — 10–15°C 10–15 °C
RHS · read 13 September 2026
Soil
Loam; pH Acid or Alkaline or Neutral
RHS · read 13 September 2026
Toxic to cats
Listed as non-toxic
ASPCA, filed as Gynura aurantica · read 13 September 2026
Toxic to dogs
Listed as non-toxic
ASPCA, filed as Gynura aurantica · read 13 September 2026
Harmful to people
No statement of harm to people is published for this plant; that absence is not evidence it is safe.
RHS · read 13 September 2026

How it usually goes wrong

Leaf blade tips go crisp and brown

A narrow dry border on the purple passion, often with a faint yellow line against the healthy tissue. It appears on several leaf blades at once rather than spreading from one.

Transpiration rises as the air dries, and the tissue furthest from a vein loses first. Penn State Extension notes there is no single humidity figure that suits every indoor plant, which is why this site publishes a range rather than a number.

Telling it apart: Where the plant stands. Browning concentrated on the side facing a heater points at the air.

Penn State ExtensionDiagnose brown tips and edges on this Purple passion
Pale, undersized leaf blades at the tips of the stems

Older leaf blades on the purple passion keep their colour while each new one comes in thinner, with a longer stretch of bare stem below it.

Medium light is where its source places it. Below that the plant spends stored sugar faster than it makes it, and reaching is what that looks like from outside.

Telling it apart: What the newest growth looks like beside the oldest. Light changes what arrives next; feeding changes what is already on the plant.

Clemson ExtensionDiagnose yellowing leaves on this Purple passion
Soft, sagging leaf blades low on the vine in soil that has not dried

Yellow spreads upward through the purple passion a few leaf blades at a time, and the compost darkens and stays cold to the touch.

A pot that does not dry between waterings keeps the roots in water rather than in damp soil, and the leaf blades above them yellow for want of what those roots can no longer send up.

Telling it apart: Two inches down with a finger. Above the soil, drowning and thirst look the same; below it they are opposites.

RHSDiagnose drooping on this Purple passion

Not sure which it is? Ask the diagnosis questions for Purple passion.

Routine care

Watering
Keep the soil moist but water less often in winter, since too much water can cause rot.
NC State Extension · read 13 September 2026
Propagation
Stem cuttings
NC State Extension · read 13 September 2026
Use bottom heat to root softwood cuttings during late spring, or semi-ripe ones during summer.
RHS · read 13 September 2026
Pruning
Pruning is not needed. If the plant grows too big, cut it in spring or summer.
RHS · read 13 September 2026
Pests and diseases
Can be troubled by glasshouse red spider mite and aphids. Diseases: usually none.
RHS · read 13 September 2026

Move something and watch

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

About the plant

Gynura aurantiaca, called purple passion or velvet plant, is a species of flowering plant in the daisy family Asteraceae. It is native to Southeast Asia but grown in many other places as a house plant. In warm regions, it is frequently grown outdoors on patios and in gardens rather than inside buildings, and hence it has escaped into the wild in Africa, Australia, South America, Mesoamerica, Florida, and a few other places.

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

Native range
Sumatera to Jawa, Sulawesi
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Sumatera to Jawa
NC State Extension · read 13 September 2026
Sumatra to Jawa
RHS · 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 shrub
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Perennial
NC State Extension · read 13 September 2026
Climbing, Columnar upright, Spreading branched (evergreen)
RHS · read 13 September 2026
Size
Height 12–24 in; width 24–48 in
NC State Extension · read 13 September 2026
Height 0.1-0.5 metres; spread 0.5-1 metres after 2–5 years
RHS · read 13 September 2026
Flowering
Flowers orange; blooms in fall, winter
NC State Extension · read 13 September 2026
Flowers yellow in winter; orange in winter; red in winter
RHS · read 13 September 2026

More of the Asteraceae 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.