Q.Pear trees
I bought two eight foot trees from Lowes and planted them in February. It is now April and they are not leafing out. The pecans and mesquite are leafed out for two weeks now, the limbs are still green .

These articles should help you.
https://www.gardeningknowhow.com/ornamental/trees/tgen/bareroot-planting.htm
https://www.gardeningknowhow.com/edible/fruits/pear/growing-pear-trees.htm
https://www.gardeningknowhow.com/edible/fruits/pear/watering-a-pear-tree.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/watering-newly-planted-tree.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-scratch-test.htm