Homes Businesses Industrial Water Conservation Energy Independence Act Power Hour Pay-It-Forward Home Energy Audits 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 coneflower (Echinacea purpurea) Plant type Flower Flower color Pink Flower season Spring to Fall Plant size 3' H x 2' W Hardiness -30 degrees Light preference Partial to full sun Winterizing instructions Dies back with frost Additional comments Blooms last many weeks Tag number in xeriscape garden 35