We have both rabbits and deer that visit regularly, though there seemed to be fewer rabbits last year than we'd had before. Natural population boom and bust cycle, perhaps? Anyway, I'm just letting wild flowers do their thing. Cotoneasters do well, as does holly and honeysuckle (though the deer love the flowers, but some of them are out of reach as the stems wind up the trees). Dog roses also do well, foxgloves, ferns, wild raspberry and bramble. My planted heathers are coming along, albeit slowly. Marsh marigolds in the boggy bits, yellow flags, fuchsia, bluebells, pignut, orange hawkweed, violets, sage, African daisies. Over a hundred species of plant and I haven't even started on the grasses and lichens and mosses yet. When I've finally eradicated the Japanese knotweed, if I want some deep beds, I'll just have to deer and rabbit-proof fence them.