Desert Rose
Also known as
Mock Azalea, Sabi Star, Impala Lily, Kudu Lily
Keep this plant’s care guide close at hand.
Get the appAbout Desert Rose
Adenium obesum, commonly called Desert Rose, is a caudiciform succulent shrub prized for its sculptural, swollen trunk (caudex) and showy, funnel-shaped flowers. Native to arid regions of East Africa and the Arabian Peninsula, it evolved to store water in its bulbous base and smooth, succulent stems, allowing survival through long dry seasons. Leaves are glossy, obovate to spatulate and emerge in flushes; the plant may shed them during drought or cool weather. Blossoms appear in warm months, ranging from white to deep crimson with bicolors and picotee edges, borne at stem tips in clusters. In cultivation, it is often trained as a bonsai, exposing and shaping the caudex above the soil. Its latex sap is toxic, containing cardiac glycosides; handle with care and keep away from children and pets. Adenium demands warmth, abundant light, and a fast-draining, mineral-rich substrate to avoid root rot. With thoughtful watering and seasonal rest in winter, it rewards growers with long-lasting blooms and distinctive architecture.
Taxonomy
Properties & Requirements
How to care for Desert Rose
Water
In warm, bright conditions, water deeply until excess drains, then allow the entire root ball to dry completely before watering again. During active growth, this may mean every 7–14 days; in cooler weather or lower light, extend intervals markedly. In winter dormancy (cool nights, short days), keep almost dry, giving only a small sip monthly to prevent shriveling of the caudex. Always empty saucers, avoid wetting the crown for long periods, and never let the plant sit in water.
Light
Provide very bright light with 6–10 hours of direct sun daily for best flowering and compact growth. Outdoors, full sun is ideal once acclimated. Indoors, a south or west window plus supplemental LED grow lights (30–40 mol·m⁻²·day⁻¹ DLI target) helps prevent etiolation. Morning sun with afternoon bright shade works in hot deserts. If leaves yellow or scorch suddenly, reduce intensity and re-acclimate gradually; if internodes stretch, increase light and airflow.
Nutrients
Feed during active growth (spring through early fall) with a low-nitrogen, balanced cactus/succulent fertilizer (e.g., 3-7-7 to 5-10-10) at 1/4–1/2 strength every 4–6 weeks. Alternatively, use a sparing dose of slow-release pellets at potting. Ensure micronutrients (especially Mg and Fe) are present to prevent chlorosis. Do not fertilize in winter dormancy or when temperatures are below 60°F/16°C. Flush the pot with clear water occasionally to prevent salt buildup in the mineral-rich mix.
Temperature
Best between 70–95°F (21–35°C) by day and above 60°F (16°C) at night. Protect from chills; growth slows below 65°F (18°C) and injury occurs near 50°F (10°C). Absolutely frost-intolerant. Overwinter indoors in temperate climates, keeping warmer and drier to encourage dormancy. Resume watering and feeding only when temperatures rise and new leaves push. Outdoor summering is fine if nights stay warm and rain events don’t keep the medium wet for long.
