Trailing Rock Jasmine (Woolly rock jasmine) care

Light

In the wild trailing rock jasmine grows on the bright edge of a forest canopy, not in the canopy and not in the open. Indoors, that translates to within a metre of an unobstructed window, sheer curtain optional. Full sun is ideal in cool climates; in regions with hot summers, dappled shade in the afternoon prolongs flowering and prevents the silvery foliage from scorching. The fastest test: a hand held at the leaf casts a soft-edged shadow at noon — sharp shadow means too much sun, no shadow means too little light.

Watering

Aim for moderate; allow top 2 cm to dry between waterings for trailing rock jasmine, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Keep roots evenly moist during the growing season but never waterlogged; water at the base to avoid wetting the hairy foliage, and reduce significantly in winter.

Soil and pot

Trailing Rock Jasmine grows best in well-drained gritty loam or alpine compost. Grow in sharply drained, moderately fertile soil enriched with leaf mould; plant in rock crevices, dry-stone walls, or raised beds where roots can seek cool, moist conditions beneath gritty surface. 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

Trailing Rock Jasmine sits happiest at around Low to moderate humidity and -15 to 22°C (5 to 72°F). More tolerant of humidity than cushion-forming Androsace, but still benefits from good air circulation; remove dead rosettes promptly to reduce the risk of fungal infection spreading through the mat. If you keep the room above 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 trailing rock jasmine sparingly. Apply a dilute balanced liquid feed once in spring as new growth emerges; overfeeding promotes lush, rot-prone growth at the expense of flowering. 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 trailing rock jasmine in the Growli community. Each is annotated with the most common cause so you know where to start.

• Fungal rosette rot — Dead or dying rosettes within the mat trap moisture and act as an entry point for Botrytis or collar rot; remove dead material promptly and ensure good air circulation around the trailing stems.
• Slugs and snails — Young shoots and the soft hairy foliage are attractive to slugs in damp weather; use iron phosphate pellets around the base or apply biological nematode control (Phasmarhabditis hermaphrodita) when soil temperature exceeds 5°C.

Propagation

Root individual rosettes as cuttings in early to mid-summer in gritty compost; the trailing stems also root naturally where they contact the soil and can be divided in early spring. 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

Trailing Rock Jasmine is mildly toxic to pets. Androsace lanuginosa is not listed in the ASPCA Toxic and Non-Toxic Plant database. As confirmed pet safety data is absent, this species is conservatively classified as mildly toxic. Monitor pets for GI upset if ingestion is suspected and seek veterinary advice. 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.

Trailing Rock Jasmine deep-dive guides

Every aspect of trailing rock jasmine care, each with its own calibrated guide:

• Common trailing rock jasmine problems & fixes
• Trailing Rock Jasmine watering schedule
• Trailing Rock Jasmine light requirements
• Best soil mix for trailing rock jasmine
• Trailing Rock Jasmine fertilizing guide
• When to repot trailing rock jasmine
• How to propagate trailing rock jasmine
• How to prune trailing rock jasmine
• What's eating my trailing rock jasmine?
• Trailing Rock Jasmine growth rate & size
• Trailing Rock Jasmine cold hardiness
• Trailing Rock Jasmine temperature & humidity
• Is trailing rock jasmine toxic to cats & dogs?
• Is trailing rock jasmine toxic to cats?
• Is trailing rock jasmine toxic to dogs?
• All 13 Androsace varieties
• Getting trailing rock jasmine to bloom

Featured in these plant shortlists

Trailing Rock Jasmine qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best trailing & climbing houseplants — Vining and trailing houseplants for shelves, hanging pots, and moss poles — selected by growth habit.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Trailing Rock Jasmine is also known as Trailing rock jasmine, Woolly rock jasmine, and Lanuginose androsace.

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