4. Holly.
This is an evergreen, for example Ilex aquifolium, except when it is not, for example Ilex verticillate, or winterberry. I. aquifolium isn’t hardy under Zone 5, so you’ll only find it in the florist’s in Alberta and Manitoba. Winterberry is, though. Both produce red berries that are slightly toxic to humans but beloved by birds. In fact, birds have dispersed far too many Ilex seeds along the west coast of North America, and now holly is outcompeting native species in forests.