Moses-in-the-cradle
Also known as
Boat lily, Oyster plant, Moses-in-a-basket, Rhoeo
Keep this plant’s care guide close at hand.
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Tradescantia spathacea is a compact, rosette-forming perennial native to the Yucatán Peninsula and neighboring parts of Central America. It bears stiff, lance-shaped leaves 15–30 cm long, glossy green on top with vivid purple undersides that provide striking, two-tone foliage. Short stems eventually form clumps, making it an excellent groundcover in frost-free regions and a resilient container houseplant elsewhere. Small, three-petaled white flowers are tucked within boat-shaped, papery bracts (spathes) at the leaf axils—an unmistakable feature that inspires its common names. The plant prefers bright, filtered light, warm temperatures, and well-drained soil, and it tolerates brief dry spells thanks to its somewhat succulent leaves. It is fast growing in the warm season and easy to propagate by division or stem cuttings. While versatile and low-maintenance indoors, it can become invasive outdoors in tropical and subtropical climates. Its sap may irritate skin and ingestion can cause oral and gastrointestinal discomfort, so handle with care and keep it away from pets and children.
Taxonomy
Properties & Requirements
How to care for Moses-in-the-cradle
Water
Water thoroughly when the top 2.5–5 cm of the potting mix is dry, allowing excess to drain completely. Avoid letting the plant sit in a saucer of water. In bright, warm conditions you may water weekly; in lower light or winter, extend intervals. The fleshy leaves store moisture, so it is more tolerant of slight dryness than constant wetness. Bottom-water occasionally to hydrate evenly, and flush the soil periodically to reduce mineral buildup that can tip-burn leaves.
Light
Provide bright, indirect light with a few hours of gentle morning sun; protect from harsh midday rays, especially through hot glass, which can scorch leaves. In low light the plant becomes leggy and loses its purple intensity. Variegated forms require even more light to maintain patterning. Aim for roughly 150–400 foot-candles (1,600–4,300 lux). If natural light is limited, supplement with LED grow lights for 12–14 hours daily, keeping fixtures 20–30 cm above the canopy.
Nutrients
Feed lightly during spring and summer with a balanced liquid fertilizer (e.g., 10-10-10) diluted to 1/4–1/2 strength every 4–6 weeks, or use a slow-release formulation at label rates. Flush the potting mix with plain water every 6–8 weeks to prevent salt buildup, which can brown leaf tips. Reduce or withhold fertilizer in low light or during winter dormancy. Excess nitrogen may encourage lush green growth at the expense of the plant’s purple coloration.
Temperature
Keep in warm conditions between 18–29°C (65–85°F). Growth stalls and tissue damage can occur below 10°C (50°F), and frost is fatal. Indoors, avoid cold drafts and sudden temperature swings; outdoors it performs best in USDA Zones 9b–12 with protection from chilly nights. High humidity is welcome but not essential; ensure good air movement to deter fungal issues. Acclimate plants gradually when moving between indoor/outdoor or shade/bright exposures.
