These plants are usually left alone by gophers. It should be noted that many plants that are deer resistant are also gopher resistant.
Shrubs: Arbutus unedo, Buddleja, Callistemon, Ceanothus, Escallonia, Euonymus, Grevillea, Heteromeles, Hydrangea, Michelia, Nandina, Oleander, Rosemary, Westringia, Ilex, Coleonema, Citrus, Rhaphiolepis, Ribes, Cistus
Perennials: Begonia (fibrous), Dietes, Lantana, Lavender, Nepeta, Penstemon, Salvia, Vinca minor, Artemesia, Euphorbia, Shasta Daisy, Clivia, Heuchera splendens (scarlet Coralbells), Juncus, Festuca, Nierembergia, Digitalis
Bulbs: Scilla, Narcissus/Daffodil, Amaryllis belladonna, Allium, Muscari, Tulbahia, Onion, Garlic
Trees: Fraxinus, Eucalyptus, Apricot, Avocado, Pomegranate
Unfortunately, the following plants have been identified as sure bet gopher foods: most bulbs, most vegetables. Especially carrots, peas, potatoes and parsley, Aster, Campanula, California Poppy, Lavatera, Miscanthus, Phormium, Rose, and Salvia uliginosa.