Pachypodium lamerei is a semi deciduous succulent stemmed tree, up to 20 feet (6 m) tall and up to 1 foot (30 cm) in diameter. Silver-gray trunk covered with sharp up to 2.4 inches (6 cm) long spines, which is generally solitary or scarcely branched. Leaves are green, long, narrow, arranged spirally, mostly just at the top of the plant. Flowers are white with yellow center, up to 3.1 inches (8 cm) in diameter. Seed pods look like cucumbers.
Pachypodiums require good amount of sunlight . Unlike other succulents, it needs lot of water in summers. The Cactus need regularly water to replenish its moisture reserves in the rest period.
Use this tall, architecturally striking succulent in a rock garden among cactus and other frost-tender succulents. When smaller, it makes an acceptable potted specimen, too.
For watering cacti, the golden rule is to make sure the soil is completely dry before watering! This will stop the roots from rotting. It is advised to always use a pot with a drainage hole so that excess water can get drained out. If kept in a sunny area, you will need to water it once every week. If it is in a semi shaded or filtered light area, you might need to water it once in 2 weeks.
Cacti like soil that is well aerated and fast draining. You can fertilise the cactus in the summer months when it is in its growing season. During the winters it is best to cut back on any fertiliser and let the plant rest.