Answer: Your purple fountain grass will go dormant when the weather turns cold. Some gardeners leave the foliage alone all winter long because it adds interest to the winter garden. If the leaves of your plants are still actively growing, they'll stand up after a rain (especially if they're fluff dried by the wind!) You can cut yours down to ground level now, or wait until new foliage begins to sprout in the spring. If you wait, be careful to remove only the dead foliage. Cutting down the newly emerging leaves will slow the growth a bit. I cut my ornamental grasses down to soil level each February. The roots produce new blades in the spring, and each clump of grass spreads out a little more each year. Ornamental grasses are wonderful additions to almost any landscape. Glad yours are performing so well!
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