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 Speedwell (Veronica allionii) Plant type Flower Flower color Purple Flower season Summer to Fall Plant size 8” H x 15” W Hardiness -30 degrees Light preference Partial to full sun Winterizing instructions Cut stalks in fall. Takes care of itself Additional comments Tag number in xeriscape garden 50