[header] How to prune yucca plants [title] Cut off the lower leaves with a blade if you want to remove its " skirt. [step] " the bottom leaves are called the yucca's " skirt. " start at the bottom of the plant, and begin cutting off leaves using a knife, blade, pruning shears, or scissors. 
Make your cuts as close as possible to the yucca's trunk. Stop removing leaves about halfway up the tree or when you like the way the yucca looks.