Plant care
Earth-colored Living Stone (Earth-coloured Mimicry Plant) care
Lithops terricolor
Also called Earth-coloured Mimicry Plant, Terracotta Living Stone, Pebble Plant.
Watering rhythm
14-21days
Every 14-21 days during the active autumn-to-spring period; none in summer
Light
Direct sun (at least 4-6 hours)
Soil
Fast-draining cactus mix with 40-50% coarse grit or perlite; can add a small proportion of red grit to reflect natural habitat
Humidity
20-40%
Temp
5-30°C
Pet safety
Pet-safe
Mature size
2-4 cm tall
Care at a glance
Light
Earth-colored Living Stone needs sun on the leaves, not just bright ambient room light. Full direct sun for at least 4-6 hours daily is required to maintain the rich, warm earth tones of this species. Insufficient light causes the reddish-brown pigments to fade to a dull greyish-green and the lobes to elongate. A south-facing windowsill is the ideal indoor position. Grow lights at 12-14 hours are a reliable winter substitute. 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 earth-colored living stone every 14-21 days during the active autumn-to-spring period; none in summer. 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. Water modestly from early autumn through to early spring when growth is active and flowering occurs. Allow the substrate to dry fully between waterings. Cease all watering as days lengthen in late spring and maintain a completely dry summer rest. During the mid-winter period when the new leaf pair is forming, withhold water until the old lobes have fully shrivelled.
Soil and pot
Earth-colored Living Stone grows best in fast-draining cactus mix with 40-50% coarse grit or perlite; can add a small proportion of red grit to reflect natural habitat. A very well-draining mineral mix is essential. Blend cactus compost with coarse perlite, pumice, or crushed terracotta-coloured grit — the latter aesthetically complements this species' colouring. Use terracotta pots with generous drainage holes and a gravel top-dressing. 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
Earth-colored Living Stone sits happiest at around 20-40% humidity and 5-30°C (41-86°F). Thrives in low to moderate indoor humidity. The Great Karoo is a semi-arid region with moderate to low humidity; typical household conditions replicate this well. Avoid positions near steam sources or humidifiers. If you keep the room above 5 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 earth-colored living stone sparingly. Apply once at quarter strength with a balanced or low-nitrogen cactus fertiliser at the start of autumn. The warm brown colouration is best preserved under nutrient-lean conditions; excess fertiliser promotes soft, pale growth and disrupts the leaf-renewal cycle. 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 earth-colored living stone in the Growli community. Each is annotated with the most common cause so you know where to start.
- Loss of warm colouration — The reddish-brown tones fade without adequate direct sun. Maximise light exposure to maintain the characteristic earth colours.
- Summer rot — Like all Lithops, this species is vulnerable to rot if watered during summer dormancy. Strict dry rest from late spring to early autumn is essential.
- Leaf split difficulty — If the old lobe pair does not dry back in winter, it indicates excess moisture. Stop watering and allow desiccation to proceed naturally.
- Mealybugs — The earth-toned lobe surface can camouflage early mealybug infestations. Check the central cleft and soil level with a magnifying glass; treat with isopropyl alcohol.
- Cold damage — Although slightly more cold-tolerant than some Lithops, prolonged temperatures below 5°C will damage the plant. Keep frost-free at all times.
Companion plants
Earth-colored Living Stone pairs well with Lithops lesliei var. lesliei, Cheiridopsis candidissima, Conophytum mundum, and Pleiospilos nelii. 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
Sow seed on barely moist fine cactus grit at 20-25°C in spring under a propagator lid; germination is typically 1-3 weeks. Division of established clumps in early autumn is straightforward — allow cut surfaces to callous for 2-3 days in a dry, shaded location before replanting into fresh 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
Earth-colored Living Stone is pet-safe. Lithops are listed by the ASPCA as non-toxic to dogs, cats, and horses. The Earth-colored Living Stone is safe for households with 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.
Earth-colored Living Stone care — frequently asked questions
What is the common name for Lithops terricolor?
Lithops terricolor is most commonly called Earth-colored Living Stone, but it is also known as Earth-coloured Mimicry Plant, Terracotta Living Stone, Pebble Plant. The names refer to the same species, so care instructions for Earth-colored Living Stone apply identically to anything sold as Earth-coloured Mimicry Plant.
How much light does earth-colored living stone need?
Earth-colored Living Stone grows best in direct sun (at least 4-6 hours). Full direct sun for at least 4-6 hours daily is required to maintain the rich, warm earth tones of this species. Insufficient light causes the reddish-brown pigments to fade to a dull greyish-green and the lobes to elongate. A south-facing windowsill is the ideal indoor position. Grow lights at 12-14 hours are a reliable winter substitute.
How often should I water earth-colored living stone?
Water earth-colored living stone every 14-21 days during the active autumn-to-spring period; none in summer. Water modestly from early autumn through to early spring when growth is active and flowering occurs. Allow the substrate to dry fully between waterings. Cease all watering as days lengthen in late spring and maintain a completely dry summer rest. During the mid-winter period when the new leaf pair is forming, withhold water until the old lobes have fully shrivelled. 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 earth-colored living stone toxic to cats and dogs?
Earth-colored Living Stone is pet-safe. Lithops are listed by the ASPCA as non-toxic to dogs, cats, and horses. The Earth-colored Living Stone is safe for households with pets.
What USDA hardiness zone does earth-colored living stone grow in?
Earth-colored Living Stone is rated for USDA zone 9-11 (one of the more cold-tolerant Lithops; still best kept frost-free) and RHS hardiness H2. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Earth-colored Living Stone deep-dive guides
Every aspect of earth-colored living stone care, each with its own calibrated guide:
- Common earth-colored living stone problems & fixes
- Earth-colored Living Stone watering schedule
- Earth-colored Living Stone light requirements
- Best soil mix for earth-colored living stone
- Earth-colored Living Stone fertilizing guide
- When to repot earth-colored living stone
- How to propagate earth-colored living stone
- How to prune earth-colored living stone
- What's eating my earth-colored living stone?
- Earth-colored Living Stone growth rate & size
- Earth-colored Living Stone cold hardiness
- Earth-colored Living Stone temperature & humidity
- Is earth-colored living stone toxic to cats & dogs?
- Is earth-colored living stone toxic to cats?
- Is earth-colored living stone toxic to dogs?
- All 46 Lithops varieties
Featured in these plant shortlists
Earth-colored 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 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 succulents for beginners — The easiest succulents and cacti to keep alive — selected by documented growth habit, each with the light and watering it actually wants.
- Best pet-safe succulents — Succulents the ASPCA lists as non-toxic to cats and dogs — low-water greenery that is also safe around a curious pet.
- 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 30 plant shortlists — pet-safe, low-light, drought-tolerant and more
Related guides
Earth-colored Living Stone is also known as Earth-coloured Mimicry Plant, Terracotta Living Stone, and Pebble Plant.