The fence can be very minor and still be effective at this level. If you are at this level plan on moving to a higher level as the area develops and the deer get smart. Ceanothus griseus and C.griseus hor. Ceanothus thyrsiflorus 'Snowflurry' Cercocarpus spp. The fruit trees have no fruit or leaves below 4'.
Roses have every leaf removed each summer-fall.
If you water your plants will have more damage. Do not plant these plants in this area. Arctostaphylos from areas other than your own. Ceanothus , most types will be browsed. C.crassifolius, C.cuneatus, and C.toment.