Moringa Olefiera PKM-1 trees, 2 years old in pots, producing seed pods

Potted Moringa Olefiera trees that are 2 years old. They are at different stages, some have almost mature seed pods; others are still producing flowers. Some are about 8 feet tall; the shortest one is about 1 foot tall. Some have lost all of their leaves, probably from heat stress and too many seed pods. The ones I cut back have multiple stems.