Mountain Big Sagebrush

Mountain big sagebrush is an evergreen shrub associated with cool, higher-elevation meadows, slopes, ridges, and foothills of western North America. Its compact, often flat-topped crown and broader leaves help distinguish it from basin and Wyoming forms, although populations may overlap and hybridize. ## Growing Conditions Plant it in sun and well-drained soil with moderate depth and some seasonal moisture. The USDA NRCS guide gives an average height near 3 feet, while Utah State University reports a 2–5 foot range that varies with location and elevation. The [USDA NRCS guide](https://www.nrcs.usda.gov/plantmaterials/idpmcpg6294.pdf) and [Utah State Western Native Plants guide](https://cwelwnp.usu.edu/westernnativeplants/plantlist_view.php?id=18&name=artemisiatridentatavaseyana) describe its size and habitat. Local growing conditions determine its mature form. ## Seasonal Character Persistent blue-gray to blue-green leaves and a flat crown add year-round structure beyond the flowering season. Cool montane habitat and soil depth are useful guides when identifying or siting this subspecies; elevation alone does not define its growing needs. ## Maintenance Favor drainage and allow room for its natural shrub form. Match establishment watering to the site and seasonal moisture. Avoid repeated shaping that removes the characteristic crown, and prune damaged growth when needed.