posted 7 years ago
By " winterberry" do you mean wintergreen (Gaultheria procumbens)? It usually refers to a heavily fruiting (on females), deciduous holly that is helpful for birds but toxic to people. The leaves of some hollies (especially yaupon, not sure about winterberry) can be brewed into a caffeinated tea, but all have toxic (for humans) fruit (unless male bushes, then no fruit of course). If you do want tea and are north of the laurel wilt area, I suggest Lindera benzoin (spicebush). The oily fruit of its females was supposedly used instead of allspice, but reminds me more of black pepper. All above ground parts of either gender make a spicy tea, and you might attract some beautiful butterflies (spicebush and tiger swallowtails). No caffeine though.
I highly recommend buffalo currant (Ribes odoratum, related R. aureum is probably worth trial too). In the middle Midwest (Ohio, Illinois, etc), domesticated cultivars of the native black raspberry (& its hybrid with the mainly European reds, purple raspberry) are very good (& ornamental in winter, though the flowers and fall color disappoint). However they are prickly and all brambles are pioneer species--you need to prune them properly (blacks tip layer so need to be pinched when their canes elongate; red raspberries and many blackberries need root barriers) or they will become weeds roving across your landscape where not shaded out by the advancing forest of taller trees.
A clump of pawpaws (Asimina triloba) will eventually make a fine focal point (most reliable in zone 5--9). I think chokeberries are great landscape shrubs, but their fruit is so tannic that it must be cooked with sugar, and probably mixed with other fruit. I don't make wine, but all that astringency might be an asset for that. If you are willing to mess with Aronia, and don't have black knot problems, why not try chokecherries (Prunus virginiana)? It makes good syrups, pemmican, and preserves, is ornamental, and great for butterflies and birds. "Garretson" is hard to find but supposedly stays below 8', making hand harvesting much easier (though you need a pollinator).
Nannyberry has decent flavor, but the drupelet is mostly the inedible seed. Highbush cranberry might give you more food.
Near native: Hybrid plums (usually a mix of Asian & American species), beach plums (Prunus maritima, native to the east coast, and often short)