Growli

Plant care

Naureen's Living Stone (Naureen's Mimicry Plant) care

Lithops naureeniae

Also called Naureen's Mimicry Plant, Living Stone.

RHS H1cUSDA 10-11Pet-safeIndoor 2-3 cm tall

Watering rhythm

14-21days

Every 14-21 days during the active autumn-to-spring period; completely dry in summer

Light

Direct sun (at least 4-6 hours)

Soil

Very free-draining cactus and mineral grit mix (50:50 cactus compost to coarse perlite or pumice)

Humidity

20-40%

Temp

10-30°C

Pet safety

Pet-safe

Mature size

2-3 cm tall

Care at a glance

Light

Most houseplants will scorch where naureen's living stone thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Requires full direct sunlight for at least 4-5 hours daily. Position on the sunniest windowsill available, ideally south- or west-facing. As with all Lithops, inadequate light causes etiolation and a dramatic increase in rot risk. Use a high-output full-spectrum grow light at 12-14 hours daily during winter if needed. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Naureen's Living Stone watering is mostly about restraint. Every 14-21 days during the active autumn-to-spring period; completely dry in summer — and never on a schedule. The finger test (or the pot-lift test) catches the actual moisture state; a calendar assumes weather and light don't change. Water lightly from early autumn through to early spring when the plant is actively growing and flowering. Allow the substrate to dry completely between waterings. Stop all watering in late spring as temperatures rise and keep the plant dry throughout summer. During mid-winter, when the new lobe pair is forming inside the old bodies, withhold water until the old leaves have fully desiccated.

Soil and pot

Naureen's Living Stone grows best in very free-draining cactus and mineral grit mix (50:50 cactus compost to coarse perlite or pumice). A highly mineral, extremely well-draining substrate is essential. Avoid organic-rich composts that retain moisture. Use terracotta pots with large drainage holes. A 1-2 cm layer of fine gravel on the surface keeps moisture away from the collar and reflects light. 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

Naureen's Living Stone sits happiest at around 20-40% humidity and 10-30°C (50-86°F). Low to moderate indoor humidity is ideal. Dry, centrally heated rooms are perfectly suitable. Avoid any consistently humid or poorly ventilated positions. If you keep the room above 10 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 naureen's living stone sparingly. Apply a single very dilute (quarter-strength) low-nitrogen cactus fertiliser at the beginning of autumn. No feeding during summer or mid-winter. Excess nutrients disrupt the natural body-split cycle and soften the lobes. 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 naureen's living stone in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Rot from out-of-season wateringThe most common and most fatal mistake. Observe the watering calendar rigorously — summer and mid-winter must be kept completely dry.
  • EtiolationElongated or unusually tall lobes indicate light deficiency. Maximise direct sun or install a grow light immediately.
  • Delayed or failed leaf splitIf the old lobes remain plump in winter, cease all watering and allow desiccation to drive the natural reabsorption process.
  • Root mealybugsInspect roots when repotting annually. A white waxy coating on roots indicates infestation; treat with a systemic insecticide drench.
  • Poor floweringTypically caused by insufficient autumn sunlight or an incomplete summer dry rest. Ensure a strict dry summer period and maximum light from early autumn onward.

Companion plants

Naureen's Living Stone pairs well with Lithops hookeri, Conophytum minutum, Faucaria tigrina, and Gibbaeum heathii. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Propagate from seed sown on barely moist fine cactus grit at 20-25°C in spring, covered with a propagator lid; germination typically takes 1-3 weeks. Clumps can be divided in early autumn — allow cut tissue to dry and callous for 2-3 days before planting in fresh, completely dry mix. 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

Naureen's Living Stone is pet-safe. Lithops are listed by the ASPCA as non-toxic to dogs, cats, and horses. Naureen's Living Stone presents no known toxicity hazard to pets. 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.

Naureen's Living Stone care — frequently asked questions

What is the common name for Lithops naureeniae?

Lithops naureeniae is most commonly called Naureen's Living Stone, but it is also known as Naureen's Mimicry Plant, Living Stone. The names refer to the same species, so care instructions for Naureen's Living Stone apply identically to anything sold as Naureen's Mimicry Plant.

How much light does naureen's living stone need?

Naureen's Living Stone grows best in direct sun (at least 4-6 hours). Requires full direct sunlight for at least 4-5 hours daily. Position on the sunniest windowsill available, ideally south- or west-facing. As with all Lithops, inadequate light causes etiolation and a dramatic increase in rot risk. Use a high-output full-spectrum grow light at 12-14 hours daily during winter if needed.

How often should I water naureen's living stone?

Water naureen's living stone every 14-21 days during the active autumn-to-spring period; completely dry in summer. Water lightly from early autumn through to early spring when the plant is actively growing and flowering. Allow the substrate to dry completely between waterings. Stop all watering in late spring as temperatures rise and keep the plant dry throughout summer. During mid-winter, when the new lobe pair is forming inside the old bodies, withhold water until the old leaves have fully desiccated. 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 naureen's living stone toxic to cats and dogs?

Naureen's Living Stone is pet-safe. Lithops are listed by the ASPCA as non-toxic to dogs, cats, and horses. Naureen's Living Stone presents no known toxicity hazard to pets.

What USDA hardiness zone does naureen's living stone grow in?

Naureen's Living Stone is rated for USDA zone 10-11 (indoor-only in most climates) and RHS hardiness H1c. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Naureen's Living Stone deep-dive guides

Every aspect of naureen's living stone care, each with its own calibrated guide:

Featured in these plant shortlists

Naureen's Living Stone qualifies for 12 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

  • Best pet-safe houseplantsHouseplants 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 houseplantsHouseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
  • Best pet-safe low-maintenance plantsNon-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 lightNon-toxic to cats and dogs and happy in a bright, sunny spot — safe plants for your best-lit windowsill.
  • Best succulents for beginnersThe easiest succulents and cacti to keep alive — selected by documented growth habit, each with the light and watering it actually wants.
  • Best pet-safe succulentsSucculents the ASPCA lists as non-toxic to cats and dogs — low-water greenery that is also safe around a curious pet.
  • Best small & tabletop houseplantsCompact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
  • Best houseplants for full sunHouseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
  • Best houseplants for a cool roomHouseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
  • Best cat-safe plantsHouseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
  • Best dog-safe plantsHouseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
  • Best small pet-safe plantsCompact, tabletop houseplants that are also ASPCA non-toxic to cats and dogs — safe greenery for a desk or shelf.
  • Browse all 30 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Naureen's Living Stone is also commonly called Naureen's Mimicry Plant or Living Stone.