Much like overgrown hair in need of a haircut, perennials need a good spring cleaning in the way of pruning. When done correctly, pruning increases foliage, flowers and pollinators.
Salvia and lantana should be cut to 3 inches above the ground, while esperanza and Pride of Barbados can be left to 6 inches above the ground.
Ornamental grasses like Lindheimer muhly and eastern gamagrass prefer just a trim.
Exceptions to the spring pruning rule include spring-blooming shrubs and trees such as Texas mountain laurel, Mexican plum, redbud and ornamental pear.
Wait until after the bloom to prune — generally in late April or May.