Is there any spring maintenance that should be done?
Certified GKH Gardening Expert
It's actually a very low-maintenance plant. Spring is a good time to think about cleaning out any dead growth (just like for any perennial). Here's a link to more information about Turtleheads: https://www.gardeningknowhow.com/ornamental/flowers/turtlehead/turtlehead-flower-information.htm