Buy Bartlett Pear trees at Trees-Plants. The Bartlett Pear Tree has to be the most popular pear tree that is grown in so many back yards. The Bartlett Pear Tree is so popular because the fruits that it bears are sweet and very juicy. Each year the tree provides bushels and bushels of pears that are just perfect for canning, snacking and cooking with. The pears are completely ripened in the late summer. When they are ripe they are so sweet that they fill your yard with a deliciously sweet aroma.