These plants may be less likely to be eaten by deer. Note that deer tend to be inquisitive feeders and are often attracted to new plantings, so some protective netting is advisable until the plants are established.
Agapanthus
Aquilegia
Bamboos
Berberis (not purple-leaved types)
Buddleja davidii (butterfly bush)
Buxus (box)
Chaenomeles (Japanese quince)
Choisya ternata
Cistus
Clematis
Cornus sanguinea (dogwood)
Cortaderia selloana (pampas grass)
Cotinus coggygria (not purple-leaved forms)
Daphne
Delphinium
Digitalis (foxglove)
Echinops (globe thistles)
Euphorbia (spurges)
Forsythia
Gaultheria shallon
Gooseberry
Helleborus (hellebores)
Hippophae rhamnoides
Hydrangea
Jasminum (jasmine - winter & summer types)
Kerria japonica
Kniphofia (red hot pokers)
Laurus nobilis (sweet bay)
Lavandula (lavender)
Leucanthemum x superbum
Lonicera species (honeysuckles)
Lonicera nitida
Lupinus (lupins)
Magnolia
Mahonia
Monarda didyma (bergamot)
Narcissus (daffodils)
Nepeta x faassenii (catmint)
Nerine
Philadelphus (mock orange)
Phormium tenax (New Zealand flax)
Potentilla fruticosa
Rhododendron (deciduous azaleas)
Rhubarb
Ribes (currants)
Robinia pseudoacacia (false acacia)
Romneya coulteri (Californian poppy)
Rosa rugosa, R. spinosissima
Spiraea japonica
Viburnum (deciduous types)
Vinca major, V. minor
Weigela
Yucca