Opened in the summer of 2008, Sweetgrass is a fitting compliment to Greywalls and Timberstone. It's setting is on far less severe or wooded property, instead on gently rolling, "Native American prairie-style". At many points it's wide open, playing through sweeping heather and around native "Sweetgrass," considered by the local Potawatomi Tribe to be a healing, mystical herb.