According to observations of naturalists and beekeepers.
Where are you?
Pear trees are native to southern, central and western Europe and grow best in light, deep soils in a mild climate.
The common pear is probably of European origin and has been cultivated since ancient times. The pear was introduced into the New World by Europeans as soon as the colonies were established. Early Spanish missionaries carried the fruit to Mexico and California. In most pear-growing countries of the world outside Asia, by far the most widely grown pear variety is Williams’ Bon Chrétien, known in the United States as Bartlett.
This plant is present in at least 43 states/provinces in this country.
The common pear tree is broad-headed and up to 13 meters (43 feet) high at maturity. The trees are relatively long-lived (50 to 75 years) and may reach considerable size unless carefully trained and pruned. The roundish to oval leathery leaves, somewhat wedge-shaped at their bases, appear about the same time as the flowers, which are about 2.5 cm (1 inch) wide and usually white. Pear flowers are usually white or pink and have five petals and sepals; the bases of the five styles are separated. Pear fruits are generally sweeter and of a softer texture than apples and are distinguished by the presence of hard cells in the flesh, the so-called grit, or stone cells. In general, pear fruits are elongate, being narrow at the stem end and broader at the opposite end. Pears are usually propagated by budding or grafting onto a rootstock, usually of Pyrus communis origin.
The pear blooming before the leaf shoots. Main bloom time: Early spring, Late spring, Mid spring.
Acer saccharinum (aka: Silver maple, Soft maple)
Salix nigra (aka: Black willow, Swamp willow, Southwestern black willow, Gulf black willow, Scythe-leaved willow)
Cercis canadensis (aka: Eastern redbud, Redbud, Cersis Reniformis)
Malus angustifolia (aka: American crab apple, Buncombe crab apple, Crabtree, Narrowleaf crab, Narrowleaf crab apple, Southern crab, Southern crab apple)
Aronia arbutifolia (aka: Red chokeberry)
Ulmus americana (aka: American elm, White elm, Water elm, Soft elm, Florida elm)
Prunus americana (aka: American plum, Goose plum, River plum, Wild plum)
Pyrus communis (aka: European pear, Common pear)
Acer negundo (aka: Boxelder, Western boxelder, Arizona boxelder, California boxelder, Texas boxelder, Interior boxelder, Violet boxelder)
Vaccinium corymbosum (aka: Highbush blueberry, High-bush blueberry, Northern highbush blueberry, Tall blueberry, Rabbiteye blueberry, Blue huckleberry, Tall huckleberry, Swamp huckleberry, High blueberry, Swamp blueberry)
Celtis laevigata (aka: Hackberry, Sugarberry, Lowland hackberry, Sugar hackberry, Arizona sugarberry, Netleaf hackberry, Small's hackberry, Southern hackberry, Texas sugarberry)
Celtis occidentalis (aka: Common hackberry, Bastard elm, Nettle-tree, Northern hackberry)
Ilex opaca (aka: American holly, Dune holly, Hummock holly, Scrub holly)
Malus domestica (aka: Pyrus pumila, Malus pumila, Apple)
Malus coronaria (aka: Sweet crab apple, Garland crab, Alabama crab, Allegheny crab, American crab, Baltimore crab apple, Buncombe crab, Dawson crab, Dunbar crab, Fragrant crab, Garland tree, Lanceleaf crab apple, Missouri crab, Sweet-scented crab, Sweet wild crab, Wild crab, Wild sweet crab, Wild Crab Apple)
Prunus cerasus (aka: Sour cherry, Tart cherry, Dwarf cherry, Montmorency cherry)
Acer saccharum (aka: Sugar maple, Rock maple, Hard maple)
Liriodendron tulipifera (aka: Tuliptree, Blue-poplar, Tulip-poplar, Yellow-poplar, Yellow wood)