Woolly Rock Jasmine (Lanuginose Androsace) care

Light

Woolly Rock Jasmine needs sun on the leaves, not just bright ambient room light. Requires full sun. Grows naturally on open rocky slopes and cliff ledges in the Himalayas. In gardens, a south- or west-facing open position ensures compact, floriferous stems. Shade causes weak, elongated growth and significantly fewer flowers. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.

Watering

Water woolly rock jasmine moderate in summer; very little in winter. 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. More tolerant of summer moisture than high-alpine Androsace species, reflecting its Himalayan origin with monsoon influence. Water moderately during the growing and flowering season; allow periods of drying between applications. Reduce sharply in autumn and keep nearly dry in winter. Good drainage remains essential at all times.

Soil and pot

Woolly Rock Jasmine grows best in well-drained gritty loam. A mix of equal parts loam, coarse grit, and horticultural sand is suitable. Neutral to slightly acidic pH (5.5–7.0). Tolerates slightly more organic matter than high-altitude species. Plant in a cascading position over a wall or rock face to benefit from natural drainage and good air movement around the silvery foliage. 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

Woolly Rock Jasmine sits happiest at around Low to moderate, 30–50% RH humidity and -15°C to 22°C (5°F to 72°F). The woolly, silver-hairy foliage provides natural protection against moisture, but still requires good air circulation to prevent fungal issues. Avoid enclosed, humid spots; growing over a wall edge or in an open raised bed provides the best conditions. 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 woolly rock jasmine sparingly. Apply a light balanced liquid feed once or twice between late spring and midsummer to support the extended flowering period. Avoid high-nitrogen feeds. A granular slow-release alpine fertiliser incorporated into the compost at planting is an effective alternative. 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 woolly rock jasmine in the Growli community. Each is annotated with the most common cause so you know where to start.

• Stem and crown rot in winter — The trailing stems are vulnerable to rot where they contact persistently wet soil in winter. Improve drainage, remove dead or damaged stems promptly, and apply a grit mulch beneath the foliage to reduce soil contact and moisture retention.
• Powdery mildew — Mildew can affect foliage in hot, dry spells with poor air circulation, appearing as a white powdery coating. Improve ventilation, avoid evening watering, and treat with a fungicide if spreading. Good siting in an open position is the best preventative.
• Short-lived plant decline — Androsace lanuginosa can be relatively short-lived, particularly in poorly drained soils. Take regular cuttings from healthy stem tips each summer to maintain a supply of vigorous replacement plants.

Propagation

Take 5–8 cm stem tip cuttings in midsummer, remove lower leaves, and root in gritty cutting compost in a cool frame with good ventilation. Rooting typically occurs within 3–4 weeks. Seed sown in autumn in a cold frame germinates in spring; cold conditioning through winter improves germination rates. Division of the trailing stems in spring is also possible. 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

Woolly Rock Jasmine is pet-safe. Androsace lanuginosa is not individually listed by ASPCA. The genus Androsace (family Primulaceae) contains no documented toxic principles and is considered non-toxic to dogs and cats based on family characteristics and horticultural literature. 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.

Woolly Rock Jasmine deep-dive guides

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

• Common woolly rock jasmine problems & fixes
• Woolly Rock Jasmine watering schedule
• Woolly Rock Jasmine light requirements
• Best soil mix for woolly rock jasmine
• Woolly Rock Jasmine fertilizing guide
• When to repot woolly rock jasmine
• How to propagate woolly rock jasmine
• How to prune woolly rock jasmine
• What's eating my woolly rock jasmine?
• Woolly Rock Jasmine growth rate & size
• Woolly Rock Jasmine cold hardiness
• Woolly Rock Jasmine temperature & humidity
• Is woolly rock jasmine toxic to cats & dogs?
• Is woolly rock jasmine toxic to cats?
• Is woolly rock jasmine toxic to dogs?
• All 7 Androsace varieties
• Getting woolly rock jasmine to bloom

Featured in these plant shortlists

Woolly Rock Jasmine qualifies for 9 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best pet-safe houseplants — Houseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
• 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 pet-safe trailing & hanging plants — Trailing and climbing plants the ASPCA lists as non-toxic to cats and dogs — safe for shelves and hanging pots in a pet home.
• Best pet-safe flowering plants — Flowering houseplants the ASPCA lists as non-toxic to cats and dogs — colour and blooms in a pet home, without the worry.
• Best pet-safe plants for bright light — Non-toxic to cats and dogs and happy in a bright, sunny spot — safe plants for your best-lit windowsill.
• Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• Best cat-safe plants — Houseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
• Best dog-safe plants — Houseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Woolly Rock Jasmine is also commonly called Woolly Rock Jasmine or Lanuginose Androsace.

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