Cobweb Houseleek (Cobweb Hens and Chicks) care

Light

Aim for at least 4-6 hours of direct sun on the leaves. Bright direct sun keeps rosettes tight and brings out red tones and dense webbing; at least 4-6 hours. In low light rosettes open up, stretch and lose colour. If your only bright window faces south, that's perfect for cobweb houseleek — same window any aroid would fry on.

Watering

Watering cobweb houseleek: when soil is fully dry, every 10-14 days in growth; sparingly in winter. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Drought-tolerant. Water from below or at the soil to avoid wetting the webbed crown, then let dry completely. Water sitting in the rosette causes rot.

Soil and pot

Cobweb Houseleek grows best in gritty, fast-draining alpine/succulent mix. Sharp drainage is essential: succulent compost with plenty of grit, perlite or coarse sand, or a gravelly alpine mix. Never use heavy, water-retentive soil. 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

Cobweb Houseleek sits happiest at around 30-50% humidity and -20 to 28°C (-4 to 82°F). Prefers dry air and strong airflow as a mountain plant. High humidity, especially with moisture trapped in the webbing, encourages crown and fungal rot. 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 cobweb houseleek sparingly. Minimal. Feeding is rarely needed and softens the tight alpine form; at most one weak, dilute feed in spring. Lean conditions give the best colour and webbing. 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 cobweb houseleek in the Growli community. Each is annotated with the most common cause so you know where to start.

• Crown rot — Water pooling in the webbed rosette or soggy soil. Water at soil level, ensure gritty drainage, and keep the crown dry.
• Open, stretched rosettes — Insufficient light. Tight rosettes and heavy webbing require bright direct sun.
• Parent rosette dying — Natural, not a fault: it is monocarpic and dies after flowering. Remove the spent rosette and let the offsets fill in.
• Mealybugs in the webbing — Pests hide under the hairs and resemble the natural web. Inspect closely and treat with dilute alcohol or insecticidal soap.

Propagation

Very easy. Detach offset 'chicks', which often have roots already, and press into gritty mix; they establish quickly. Divide clumps spring through summer. 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

Cobweb Houseleek is pet-safe. ASPCA-listed as non-toxic to cats, dogs and horses (Sempervivum / hens and chickens). A pet-safe genus; ingestion may at most cause mild, transient GI 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.

Cobweb Houseleek deep-dive guides

Every aspect of cobweb houseleek care, each with its own calibrated guide:

• Cobweb Houseleek watering schedule
• Cobweb Houseleek light requirements
• Best soil mix for cobweb houseleek
• Cobweb Houseleek fertilizing guide
• When to repot cobweb houseleek
• How to propagate cobweb houseleek
• Cobweb Houseleek growth rate & size
• Cobweb Houseleek cold hardiness
• Cobweb Houseleek temperature & humidity
• Is cobweb houseleek toxic to cats & dogs?
• Is cobweb houseleek toxic to cats?
• Is cobweb houseleek toxic to dogs?

Featured in these plant shortlists

Cobweb Houseleek qualifies for 10 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 drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best pet-safe low-maintenance plants — Non-toxic to cats and dogs and forgiving of forgotten watering — the easiest safe choices for a busy pet household.
• 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 small & tabletop houseplants — Compact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
• 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 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.
• 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.
• Best small pet-safe plants — Compact, tabletop houseplants that are also ASPCA non-toxic to cats and dogs — safe greenery for a desk or shelf.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Cobweb Houseleek is also commonly called Cobweb Hens and Chicks.

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