Why Plants Die
Theme

Lipstick plant

Aeschynanthus radicans, Gesneriaceae

Sources last read 14 September 2026.

Middling It gives warning, with time to act.

Also called Basket Vine and Lipstick Vine.

Lipstick plant (Aeschynanthus radicans), the whole plant.
Mokkie, CC BY-SA 3.0 · Wikimedia Commons

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. 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

Light
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.

H1A — warmer than 15°C 15 °C
RHS · read 13 September 2026
Soil
Loam; pH Acid or Alkaline or Neutral
RHS · 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 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

Buds that yellow and drop on a leafy plant

Buds appear on the lipstick plant and then fall while still closed, often within days of the plant being moved, turned or left to dry out.

A bud is the most expensive thing on the plant. Kept below the partial shade its source names, or moved while in bud, the lipstick plant abandons buds before it abandons leaves.

Telling it apart: A fallen bud under a magnifying glass. Insects or scarring point at pests; a clean bud points at a change or at water.

RHSLipstick plant leaves turning yellow: causes
Dry, curled edges on leaves near a heater

Leaves on the side of the lipstick plant nearest a heater or vent brown at the edges while those on the far side stay clean.

Dry air takes water from the leaf surface continuously, and the tissue at the edge is last in the queue for what the roots send up. Penn State Extension notes there is no single humidity figure that suits every indoor plant.

Telling it apart: Look at the pot rim and the soil surface. A white crust points at a build-up from tap water or feed rather than at the air. Penn State also reports misting and pebble trays do little to the humidity around a plant.

Penn State ExtensionLipstick plant brown leaf tips and edges: causes
Long bare stretches of stem between leaves

Nothing browns and nothing drops; the lipstick plant simply makes less, and what it makes is stretched and thin.

A plant stretches when the light is short of what it evolved for. Its source describes partial shade, and a room darker than that sets the plant reaching.

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.

RHSDiagnose leggy growth on this Lipstick plant
Yellow, limp leaves at the base

A sour smell from the compost is common on a lipstick plant, and the lowest leaves on each stem come away when pulled. The surface may look dry while everything beneath it is not.

Soil described as moist but well-drained is a drainage instruction as much as a watering one. Compost that stays saturated suffocates the fine roots that do the drinking.

Telling it apart: The soil, not the leaf. Wet compost under yellowing leaves points one way and dry compost the other, and the leaves alone will not tell you which.

RHSLipstick plant leaves turning yellow: causes

Not sure which it is? Ask the diagnosis questions for Lipstick plant.

Routine care

Watering
Water often, but make sure the potting soil drains well.
NC State Extension · read 13 September 2026
Between mid spring and late summer, water generously and feed monthly with a general liquid feed at half strength. Give little water in winter.
RHS · read 13 September 2026
Feeding
In the growing season, a dilute liquid fertilizer (an orchid one, for example) promotes leaves and flowers.
NC State Extension · read 13 September 2026
Between mid spring and late summer, water generously and give a general liquid feed at half strength each month.
RHS · read 13 September 2026
Propagation
It is easy to propagate and share: take a soft stem cutting with three nodes.
NC State Extension · read 13 September 2026
Root softwood cuttings during spring, or semi-ripe cuttings during summer.
RHS · read 13 September 2026
Pruning
Trim weak or overlong shoots when needed.
RHS · read 13 September 2026
Pests and diseases
Can be troubled by aphids, mealybugs and scale insects.
NC State Extension · read 13 September 2026
Can be troubled by mealybugs 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

Aeschynanthus radicans is a vine-like plant in the family Gesneriaceae. It is native to the humid tropics of the Malay Peninsula south to Java.

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

Native range
S. Myanmar to W. & C. Malesia
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Peninsula Thailand to W. & Central Malesia
NC State Extension · read 13 September 2026
Thailand to Malesia
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
epiphyte or lithophyte
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Epiphyte, Herbaceous Perennial, Vine; habit arching, cascading
NC State Extension · read 13 September 2026
Trailing (evergreen)
RHS · read 13 September 2026
Size
Height 12–36 in; width up to 8 in
NC State Extension · read 13 September 2026
Height 0.5-1 metres; spread 0.1-0.5 metres after 2–5 years
RHS · read 13 September 2026
Flowering
Flowers red/burgundy; blooms in fall, spring, summer
NC State Extension · read 13 September 2026
Flowers red in summer
RHS · read 13 September 2026

Common problems with Lipstick plant

Other Aeschynanthus

More of the Gesneriaceae 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.