Homes Businesses Industrial Water Conservation Energy Independence Act Power Hour Pay-It-Forward Home / Rebates / Water Conservation / Xeriscape / Xeriscape Plants / Xeriscape Plants Plants listed here are found in the Riverfront Park Demonstration Garden along the Apple Capital Loop Trail in Wenatchee. Numbers refer to plant identification markers in the garden. Click on photos to enlarge and for more plant details. Back Purple prairie clover (Dalea purpureum) Plant type Flower Flower color Purple Flower season Summer Plant size 18" H x 18" W Hardiness -40 degrees Light preference Full sun Winterizing instructions No maintenance needed Additional comments Adds nitrogen to the soil Tag number in xeriscape garden 32