Deer Proof Plants

Shrubs

Japanese Andromeda, English Boxwood, Leucothoe, Euonymus, Alata Barberry (all types), Oregon Grape Holly. 

Groundcover

Pachysandra, Cotoneasters, Juniper, Procumbens.

Perennials

Ajuga, Akebia, Alchemilla, Allium, Angelica, Artemisia, Asarum, Bergenia, Borago, Buxus, Campanula, Campsis, Celastrus, Cerastium, Clematis, Convallaria, Delpinium, Dianthus, Digitalis, Duchesnea, Epimedium, Fallopia, Ferns (various), Fragaria, Galium, Helianthus, Iberis, Ipomoea, Lamium, Liriope, Lobelia, Lonicera, Mimulus, Myosotis, Nepeta, Ocimum, Pachysandra, Papaver, Parthenocissus, Persicaria, Petunia, Potentilla, Pulmonafia, Salvia, Sanguisorba, Sedum, Sempervivum, Spiraea, Vinca, Vitis, Viola, Waldsteinia 

Bulbs

Daffodils 

Annuals

Ageratum, Begonia, Calendula, Impatiens, Zinnia 

Without renovating your entire landscape to include "deer proof" plants, consider fencing off those plants that are most valuable. Or place small bars of highly scented soap around the trees and shrubs to discourage deer browsing.