Deer tend to avoid some plants and relish others.
Try planting the following kinds of plants which are less attractive to deer. Tree suggestions include white fir, Colorado spruce, pinyon pine, common juniper, Rocky Mountain maple, hackberry and honeylocust. Shrub possibilities are lead plant, potentilla, Austrian copper rose, quince, 'Blue Mist' spirea, winged euonymus, golden currant, lilacs, Oregon grape holly and pyracantha. Deer-resistant herbs include marjoram and lavender. Native plants growing in their native habitats may be less appealing to deer than highly fertilized and highly watered Garden plants.