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 Blue oat/blue avena grass (Helictotrichon sempervirens) Plant type Ornamental Grass Flower color Blue-green Flower season Spring to Fall Plant size 4' H x 2' W Hardiness -20 degrees Light preference Full sun Winterizing instructions No maintenance needed Additional comments Adds texture and color to any garden Tag number in xeriscape garden G-3