Pruning Yellow Bells Promotes More Blooms

Esperanza (Tecoma species, also known as yellow bells, yellow trumpetbush, or yellow elder) is a perennial semi-tropical shrub native to the hot, dry regions of the Americas. In many areas, annual freezes keep the plant smaller. But esperanza can grow very large where there is no freezing, and may even need pruning.

Training

In places where it does not freeze to death each year, esperanza can be trained into a tree form. Although this is not necessary, it allows light to reach the surrounding plants. Although they are not vines, they can also be pruned and trained into a fixed shape and size, because they do not stay fixed in place, and to prevent them from changing, they must be tied up.

Promoting Blooming

Once the esperanza flowers fade, prune them off the shrub immediately. This will help promote more blooming. In addition, removing these plants' seed pods will not only increase the chances of blooming, but also reduce the chances of esperanza spreading into the wild. Even without pruning in this way, the plant will continue to bloom, with each blooming being more colorful than the last.

Warning

According to Mary Rose Duffield in the book Plants for Dry Climates, heavily pruning esperanza in spring or late in the growing season to keep it at a controlled size will reduce its blooming throughout the season. In regions with a very long growing season, and in winters where it does not freeze every year, esperanza becomes very large, so plant them to accommodate their maximum size.

Precautions

In areas that freeze every year, pruning the new growth of esperanza at the first blooming can produce branching without sacrificing many flowers. In these areas, esperanza reaches only half the size of its tropical counterpart, and can reach 3 m to 7.6 m in height and width.