When it comes to pruning ornamental grasses, even an ordinarily confident gardener can feel some confusion. Each type of grass has different requirements, which makes it hard because there’s not one rule of thumb which fits all. While some varieties look shaggy and sad if not whacked to the ground each January, for other types of grass this treatment sounds the death knell.
Not to worry. I’ve got you covered with a list of the ornamental grass varieties that are grown most commonly, and simple instructions for how to prune each. Though I live in the coastal Pacific Northwest and have geared my instructions towards people in similarly rainy climes, the only thing that would be different in a climate where it snows is that you would have to prune your grasses either earlier before the first snow, or later in midspring.