Question: Should I trim my oleanders back this fall, or wait until spring?

Answer: Oleanders require little if any pruning. The best time to prune them, however, is in late winter, just prior to the start of spring growth. That way if any cold damage occurred over the winter it can be removed at that time. Minor pruning can also be done in spring and summer if needed.

If major pruning is needed, it is best to cut individual shoots back to the ground line, or at least where they join another shoot. Shearing creates an unnatural form.