Cuttingback dead ornamentalgrass can be a messy job, but there are some best practices to make the work easier and tidier.However, the answer to the question of whentocutbackornamentalgrasses depends on the type grown. When Not toCutBack. It’s important to know whento leave your ornamentalgrasses alone and let them flourish. “Avoid cuttingbackornamentalgrasses in mid-summer or mid-winter,” says Niemann. Here, we look at whentocutbackornamentalgrasses so that you can keep on top of these otherwise low-maintenance plants and keep your garden neat and tidy. How To Know WhenToCutBackOrnamentalGrass – Fall, Winter or Spring?Can OrnamentalGrasses Be CutBack In The Fall? The Answer, And More! When do you cut them back? Tell us about it in the comments section below. And to learn more about growing ornamentalgrasses in your garden, check out these guides next When Should You CutBackOrnamentalGrasses? Whentocutback your ornamentalgrasses depends on the type you are growing and whether you plan to leave them over the winter. Whentocut down ornamentalgrasses. There are generally three classifications of ornamentalgrasses: cool season, warm season, and evergreen grasses. WhentoCutBackOrnamentalGrasses.Some grasses have deep roots, so you’ll need tocut through them to free the root ball. Use a sharp-edged spade or a shovel and don’t worry about slicing roots — the grass can take it. Here’s how to proceed When should I cutback my ornamentalgrasses? Many ornamentalgrasses provide color, sound, and movement to the winter landscape.The centers of ornamentalgrasses often die as the plants get older. When this occurs, it’s a good time to dig and divide the grasses. Quick and effective method for cuttingbackornamentalgrasses. While you may have already completed all the essential March garden jobs, April brings with it even more tasks to tick off the list, such as pruning grasses. WhentoCutBackOrnamentalGrasses. There are three main types of grasses with different growing patterns.How toCutBackOrnamentalGrasses. Before you start, put on thick gloves and eye protection. Long grass can be surprisingly sharp. WhentoCutBackOrnamentalGrasses.Small, divided ornamentalgrasses are planted in loose dirt. Photo Credit: maryviolet / Adobe Stock. You don’t have to divide ornamentalgrass annually. They typically need to be divided every two to five years. Whentocutback your ornamentalgrasses.Since warm-season grasses grow best in the heat, they should be cutback in early fall when the temperatures cool down and they start to go dormant. This way, they will bounce back with more vigor in the spring. A. Ornamentalgrasses can be cutback any time from fall to spring, but I like to leave them in place over the winter. They bring motion and texture to the garden when they’re desperately needed!