Common Name(s): Lamb’s Tongue, Sheep’s Mouth, Open Mouth Plant
Origin: Native to South Africa, particularly the Eastern Cape and Little Karoo regions.
Description:
Stomatium is a charming, low-growing succulent belonging to the Aizoaceae (Ice Plant) family, making it a close relative of the popular Lithops (Living Stones). Its name comes from the Greek “stomation” meaning “open mouth,” a reference to the pairs of soft-toothed leaves that resemble a wide-open jaw. The fleshy, tongue-like leaves are typically pale green to grey-green, often covered with rough dots and small, soft teeth near the tips. This mat-forming succulent stays under 15 cm tall but spreads slowly to form dense clumps, making it an excellent groundcover for rock gardens or mixed succulent bowls. In summer to early autumn, it produces large, daisy-like flowers in shades of bright yellow to lemon-yellow. These flowers are nocturnal, opening in the evening and releasing a sweet, sugary scent to attract pollinators, then closing by morning. The leaves become almost silver when grown very dry, adding to its textural appeal .
Care:
☀️ Light: Prefers full sun to bright, indirect light. Place less than 30cm from a sunny window indoors . Protect from harsh afternoon rays only in extreme heat.
💧 Water: Drought-tolerant. Water thoroughly only when the soil is completely dry. Reduce watering significantly in winter when dormant.
🌱 Soil: Requires a gritty, exceptionally well-draining succulent mix with added pumice or perlite to prevent waterlogging.
🌡️ Temp: Hardy to -4°C to -6°C when kept dry . Thrives in warm temperatures between 20-30°C .
🌸 Flowering: Produces fragrant, yellow nocturnal flowers in summer to early autumn.
Pet Friendly: ✅ Non-toxic – Generally considered safe for cats and dogs.
Propagation: Easily propagated from seed or by dividing mature clumps during the growing season . Allow divisions to dry before planting.
