How to Harvest Marshmallow Root the Right Way

How to harvest marshmallow root is something every herb gardener should know once their plants reach that two or three-year mark. If you've ever grown Althaea officinalis, you know it's a beautiful, tall perennial with soft, velvety leaves, but the real treasure is hidden underground. Most people associate marshmallows with those puffy white campfire treats, but the original confection actually came from this plant. Today, we harvest it mostly for its soothing properties, and honestly, digging it up is one of my favorite fall garden chores. ...

February 15, 2026 · 6 min · Sandeep Halpern