Do I need to cut down the daylilies in the fall? What about glads and coneflowers? Also, how do you kill the invasive roots for yucca plants?
Fall Care of Daylilies, Yucca Plants
Certified GKH Gardening Expert
After the foliage of day lilies, gladiolus, and coneflower turns yellow or brown, you can cut it back. Or you can wait till spring to remove the dead leaves.
If you are in a cold region, gladiolus bulbs should be dug up for the winter. Here's how:
This article explains how to remove an entire yucca plant:
If instead you just want to remove some roots, you can try to cut off the invasive roots from the main plant by plunging a sharp shovel into the ground. Then install a root barrier.