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Plant care

Aeschynanthus radicans 'Curly Q' (Twisted lipstick plant) care

Aeschynanthus radicans 'Curly Q'

Also called Twisted lipstick plant.

RHS H1bUSDA 10-11Pet-safeIndoor Trailing stems reach 30-60 cm or more

Watering rhythm

7-10days

When the top 2-3 cm of mix is dry, roughly every 7-10 days

Light

Bright indirect light (just back from a sunny window)

Soil

Light, airy, free-draining epiphytic mix

Humidity

50-60%

Temp

18-27°C

Pet safety

Pet-safe

Mature size

Trailing stems reach 30-60 cm or more

Care at a glance

Light

Aeschynanthus radicans 'Curly Q' is what florists mean by "bright spot, no direct sun" — close enough to a south or east window to feel the brightness, with a sheer curtain or a few feet of distance keeping the sun off the leaves. Bright indirect light drives flowering; some gentle morning sun is fine. Too little light means few or no blooms, while hot direct sun scorches the foliage. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water aeschynanthus radicans 'curly q' when the top 2-3 cm of mix is dry, roughly every 7-10 days. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Water thoroughly then let the surface dry slightly; as an epiphyte it resents constantly wet roots. Reduce watering in winter but never let it bone-dry.

Soil and pot

Aeschynanthus radicans 'Curly Q' grows best in light, airy, free-draining epiphytic mix. Use a chunky blend such as peat or coir with bark, perlite and a little sphagnum, mimicking its life perched on branches and preventing soggy roots. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Aeschynanthus radicans 'Curly Q' sits happiest at around 50-60% humidity and 18-27°C (64-81°F). Prefers moderate to high humidity; tolerates average rooms but flowers and foliage are best with a pebble tray, humidifier or a humid spot like a bright bathroom. If you keep the room above 18 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed aeschynanthus radicans 'curly q' sparingly. Feed a balanced or bloom-boosting liquid fertiliser at half strength every 2-4 weeks in spring and summer to support flowering; ease off in winter. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on aeschynanthus radicans 'curly q' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Few or no flowersUsually too little light or over-rich nitrogen feeding; give bright indirect light, a slightly cooler winter rest and a bloom-supporting feed to trigger flowering.
  • Leaf dropOften a response to cold draughts, sudden temperature swings or letting the mix dry out fully; keep it warm, draught-free and evenly cared for.
  • Yellowing leaves / root rotOverwatering or a dense, water-retentive mix suffocates the roots; use an airy epiphytic blend and let the surface dry between waterings.
  • Leggy, bare stemsAge and low light cause sparse growth; prune after flowering to encourage branching and bushier, more floriferous trails.

Propagation

Root 8-10 cm stem-tip cuttings in moist airy mix or water; bottom warmth and humidity speed rooting, and pinching encourages a fuller plant. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Aeschynanthus radicans 'Curly Q' is pet-safe. ASPCA-listed as non-toxic to cats and dogs (lipstick plant, Aeschynanthus). No recognised toxic principle, though it is not meant for consumption and large amounts could cause minor stomach upset. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Aeschynanthus radicans 'Curly Q' care — frequently asked questions

What is the common name for Aeschynanthus radicans 'Curly Q'?

Aeschynanthus radicans 'Curly Q' is most commonly called Aeschynanthus radicans 'Curly Q', but it is also known as Twisted lipstick plant. The names refer to the same species, so care instructions for Aeschynanthus radicans 'Curly Q' apply identically to anything sold as Twisted lipstick plant.

How much light does aeschynanthus radicans 'curly q' need?

Aeschynanthus radicans 'Curly Q' grows best in bright indirect light (just back from a sunny window). Bright indirect light drives flowering; some gentle morning sun is fine. Too little light means few or no blooms, while hot direct sun scorches the foliage.

How often should I water aeschynanthus radicans 'curly q'?

Water aeschynanthus radicans 'curly q' when the top 2-3 cm of mix is dry, roughly every 7-10 days. Water thoroughly then let the surface dry slightly; as an epiphyte it resents constantly wet roots. Reduce watering in winter but never let it bone-dry. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is aeschynanthus radicans 'curly q' toxic to cats and dogs?

Aeschynanthus radicans 'Curly Q' is pet-safe. ASPCA-listed as non-toxic to cats and dogs (lipstick plant, Aeschynanthus). No recognised toxic principle, though it is not meant for consumption and large amounts could cause minor stomach upset.

What USDA hardiness zone does aeschynanthus radicans 'curly q' grow in?

Aeschynanthus radicans 'Curly Q' is rated for USDA zone 10-11 (indoor in most US homes) and RHS hardiness H1b. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Aeschynanthus radicans 'Curly Q' deep-dive guides

Every aspect of aeschynanthus radicans 'curly q' care, each with its own calibrated guide:

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Aeschynanthus radicans 'Curly Q' is also commonly called Twisted lipstick plant.