Tiger Jaws (Tiger's Jaw) care

Light

Tiger Jaws 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. Loves the brightest spot you have. A south- or west-facing windowsill giving 4-6 hours of direct sun is ideal indoors; at least 3 hours of direct sun is needed for it to bloom. Acclimatise gradually to strong summer sun to avoid scorching, and rotate the pot so the rosette stays even. Leaves blush pink to purple under bright light, which is normal stress colouring, not damage. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water tiger jaws every 2-3 weeks in spring-autumn; roughly monthly or less in winter. Succulent-style plants store water in stem and leaf tissue — they'd rather be slightly thirsty than slightly soggy, and the most common way to kill one is to water it on a fixed weekly calendar instead of by feel. Water thoroughly, then let the soil dry out completely before watering again - this is a classic 'soak and dry' succulent. Cut right back in the winter rest period, giving only enough to stop the leaves shrivelling. Overwatering and standing moisture are the main killers, causing soft, mushy, rotting leaves and root rot. Always tip away water that collects in the saucer.

Soil and pot

Tiger Jaws grows best in gritty cactus and succulent mix. Use a fast-draining cactus/succulent compost, or amend regular potting mix with plenty of perlite, pumice, or coarse sand (around 50% grit). A mature-plant blend of two parts loam, one part coarse sand and one part pumice (per SANBI) works well. Always plant in a pot with drainage holes; terracotta helps wick away excess moisture. 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

Tiger Jaws sits happiest at around 30-40% (low, average room humidity) humidity and 18-29C in growth; cool winter rest around 10C (65-85F in growth; cool winter rest around 50F). Prefers dry air and good airflow. High humidity and stagnant, damp conditions encourage rot, so never mist it and keep it away from steamy bathrooms. Ordinary household humidity is perfectly fine. 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 tiger jaws sparingly. Feed lightly only during active growth (spring to early autumn) - about once a month with a diluted low-nitrogen or balanced succulent fertiliser. A single feed before the autumn flowering season is enough to support blooming. Withhold all fertiliser during the winter rest period. 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 tiger jaws in the Growli community. Each is annotated with the most common cause so you know where to start.

• Soft, mushy, translucent leaves — The classic sign of overwatering and rot. Let the soil dry fully between waterings, water far less in winter, and ensure the pot drains freely.
• Etiolated, stretched, pale growth — Not enough light makes the rosette loosen and reach. Move it to your brightest window and give several hours of direct sun a day.
• Won't flower — Usually too little direct sun or no cool, dry winter rest. Provide at least 3 hours of direct sun and a cooler, drier dormant spell to trigger autumn blooms.
• Shrivelled, wrinkled leaves — Underwatering, especially if bone dry for long stretches. Give a thorough soak; leaves should plump back up within a few days.
• Mealybugs — White cottony pests can hide between the leaf pairs and at the base. Wipe off with a cotton bud dipped in rubbing alcohol and inspect new plants before bringing them in.
• Pinkish-purple leaf colour — Harmless sun stress, not a problem - bright light naturally tints the foliage. Reduce direct sun only if you prefer the green look.

Propagation

Easiest by division: lift the clump and separate rooted offsets ('heads') from the base, let any cut surface callus for a day or two, then pot into barely moist gritty mix. It can also be grown from leaf cuttings (callus the cut end first) or from seed, though seed is much slower. Spring to early summer is the best time to propagate. 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

Tiger Jaws is mildly toxic to pets. Faucaria tigrina is not individually listed in the ASPCA toxic or non-toxic plant database, and the genus Faucaria has no ASPCA-listed members. Although closely related ice-plant-family (Aizoaceae) succulents such as Lithops and Pleiospilos are ASPCA-listed as non-toxic, those are different genera, so we treat Tiger Jaws conservatively as potentially mildly toxic and recommend keeping it away from pets and confirming with your vet before assuming it is safe. 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.

Tiger Jaws deep-dive guides

Every aspect of tiger jaws care, each with its own calibrated guide:

• Tiger Jaws watering schedule
• Tiger Jaws light requirements
• Best soil mix for tiger jaws
• Tiger Jaws fertilizing guide
• When to repot tiger jaws
• How to propagate tiger jaws
• Tiger Jaws growth rate & size
• Tiger Jaws cold hardiness
• Tiger Jaws temperature & humidity
• Is tiger jaws toxic to cats & dogs?

Related guides

Tiger Jaws is also known as Tiger Jaws, Tiger's Jaw, Tiger's Jaws, and Shark's Jaws.

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