Pot Size: 3.5"
Accepted Scientific Name: Adenium obesum
Origin and Habitat:
Adenium obesum is native to arid and semi-arid regions of sub-Saharan Africa and parts of the Arabian Peninsula. In these environments, the plant thrives in sandy and rocky soils with excellent drainage, relying on its swollen caudex to store water during extended droughts. It is commonly found in open, sun-exposed landscapes with little competition from other vegetation. The species has adapted to withstand extreme heat, minimal rainfall, and nutrient-poor conditions, making it an ideal plant for dry climates and container culture.
Description:
The Picotee form of Adenium obesum is a distinctive and highly ornamental succulent shrub. Its most striking feature is the showy flowers, typically 2 to 3 inches wide, with bright white petals accented by bold, contrasting edges in red or pink, creating the elegant “picotee” effect. Mature plants may reach 12 to 36 inches in height, with a thick caudex base that can expand 6 to 20 inches across. The glossy green leaves cluster at branch tips, enhancing the dramatic appearance of the vibrant, bordered blossoms that make this form highly prized among collectors.
Cultivation:
Zone: Best grown in Zones 10–11.
Temperature: Thrives at 20–35°C and must be protected from temperatures below 10°C.
Growth rate: Moderate to slow, depending on warmth, fertilizer, and available sunlight.
Soil: Requires fast-draining soil enriched with pumice and perlite, avoiding heavy organic matter that retains moisture.
Watering: Water deeply but infrequently, allowing the soil to dry fully between applications. Water sparingly during cooler dormant months.
Fertilizing: Use a balanced, diluted fertilizer every 2–3 weeks during active growth and flowering periods.
Light: Prefers full sun or a minimum of 6 hours of direct sunlight daily for optimal blooming.
Pests and Diseases: May be affected by mealybugs, spider mites, and scale insects. Root rot is common if the soil is poorly drained or overwatered.
Propagation:
Adenium obesum Picotee can be propagated from seed, which encourages variation in caudex shape and bloom pattern, or by cuttings, which root quickly but may form smaller bases. Grafting is often used to preserve the picotee flower coloration, ensuring consistent results across new plants.
