Euphorbia lophogona, popularly known as the Randramboay shrub, is native to Madagascar. This small shrub typically grows between 2 to 5 feet in height. It is important to remember that the plant can cause skin irritation and its stems are usually thorny or spiny.
This drought-tolerant shrub is ideal for a sunny spot and does well when regularly watered. However, it can also tolerate semi-shade and moderately dry conditions. During the autumn and winter months, the shrub leaves fall, only to re-grow during the spring and summer. While the plant is not in bloom, the stems are covered with small pointed, star-shaped leaves. When it blooms, the shrub produces small off-white or white flowers with yellowish-green centers.
The Euphorbia lophogona can be grown in USDA Zones 9 to 11. In the cooler regions, growing this plant in a pot is recommended. When potting the plant, it is important to use a well-draining soil mix and container, and to keep the soil slightly moist during the warmer months. Care should be taken to protect the plant from freezing temperatures. During the cooler months, reduce watering to allow the soil to go slightly dry between watering. During the warmer months, ensure that the shrub is in a well-lit position and keep the soil consistently moist. Additional fertilization can help encourage the blooms.
Overall, this is an adaptable plant suitable for sunny or partially shady locations in warm climates. With minimal effort, you can enjoy the benefits of this beautiful shrub.