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 Adam’s needle (Yucca filamentosa) Plant type Flower Flower color White Flower season Summer Plant size 4' H x 2½' W Hardiness -10 degrees Light preference Partial to full sun Winterizing instructions Remove brown leaves and stalks in fall or spring Additional comments Tag number in xeriscape garden 2