The national champion soaptree yucca as it looked on Sept. 12, 2019. The plant in Big Wash between Oro Valley and Catalina once stood roughly 30 feet tall. Henry Brean, Arizona Daily Star ...

If your yucca plant is growing too tall, don’t be afraid to cut it down to size—literally. The recommended method to prune yucca is to cut the central stem in half using loppers or a saw.

Knowing how to grow yucca plants is one thing, but you'll also need to give them some light TLC to keep them in good shape. Pruning isn't a necessity, but you can do some light trimming in the spring.