Some types of perennials, including hosta, do not have sturdy stems, and quickly turn to mush after a few hard freezes. Hosta, daylilies and iris are best cut back in fall to an inch or so above ...
1 Department of Crop, Soil, and Environmental Sciences, University of Arkansas System Division of Agriculture, Fayetteville, AR, United States 2 Department of Crop, Soil, and Environmental Sciences, ...