|When and how should I prune or cut back NEWELL CESTRUM? I have a specimen that has about five 7-8ft branches that have to be supported now because the top flower clusters have weighed them down.
|As you've discovered, Cestrum produces flowers at the ends of it's branches. It's a fast-growing shrub and can be pruned back severely after flowering. It can even freeze down to ground level and come back quite vigorously in the spring. Wait until the flowers are spent, then cut the tallest branches back to ground level. To promote bushiness, pinch back the tips of the remaining branches. Continuous pinching and pruning will keep the shrub under control and promote lots of flowering.