4-in-1 Pear Tree4 Kinds of Pears from 1 Single Tree Grow the best varieties of sweet, delicious pears from August through October. These four popular varieties were grafted together on a single trunk. This compact tree takes little space and produces an enormous amount of fruit. Your 4 in 1 Pear is a hardy tree that's even self pollinating, with the Comice, Summercrisp, Red Anjou, and Kieffer Pears. These are the same varieties sent in gift baskets and mail order.