Killarney Raspberry is extremely robust, with some of the best cold and disease resistance available. This could be due, in part, to it being bred in Manitoba.

It is also known for its good flavor and for being firmer than other varieties, which lends to its use in processing like pies, jams, and jellies or for U-Picks.

Killarney Raspberry is a floricane-fruiting variety, meaning it primarily produces fruit on second-year canes (previous season’s new growth). They are also referred to as summer-bearing. In late winter or early spring, cut back all spent floricanes, leaving only last season's canes.

Raspberries are self-fertile, meaning they do not require cross-pollination from another variety to produce fruit.