Novice fruit grower here. DS and I are growing 2 strawberry plants, one to a large pot each, plus a few in a longer tub. They have produced lots of runners - should we cut them off? Will they stop the plant fruiting? If we make a new little strawberry plant from one, do we need to protect it over the winter for next year? For that matter, I've got no idea what to do with the existing strawberry plants once they stop fruiting - can I keep them for next year?