Madagascar Palm (Pachypodium) Leaf Drop: Watering and Dormancy

Black spots and leaf drop on Pachypodium lamerei usually stem from watering errors. These plants need maximum light (south window) and a winter drought to mimic their native cycle.

Two Scenarios

Underwatered: Infrequent watering triggered natural winter dormancy—leaves drop, plant rests. This is normal. Suspend water 2–3 months, keep warm and sunny. Resume in spring for summer flowers.

Overwatered: Constant dampness rots roots—fatal if not caught. Water only when soil is dry deep in the pot.

Year-Round Option

Some growers water lightly all winter to retain leaves. This reduces flowering chances. Choose based on your goals.

Summer Care

Water every 2–3 weeks. Fertilize twice at half strength. Full sun essential.