Pear trees (Pyrus communis and related species) are long-lived deciduous fruit trees in the Rosaceae family, cultivated for their distinctive pome fruits with soft, buttery flesh. Pears are among the most cold-hardy of the tree fruits and are well-suited to temperate homesteads in USDA zones 4 through 8. The fruit has the unusual characteristic of ripening off the tree, requiring harvest at maturity but before the fruit softens.
Pear cultivation dates back at least 3,000 years, with evidence of domestication in the Caucasus region and central Asia. The Romans cultivated pears extensively, developing more than 50 named varieties. The pear spread throughout Europe during the Middle Ages, where it was improved by European monastic gardeners. The European pear (Pyrus communis) was brought to North America by early colonists.
The modern pear industry is based on a relatively small number of varieties, with Bartlett (Williams), Bosc, Anjou, and Comice dominating commercial production. The Asian pear (Pyrus pyrifolia), a distinct species with crisp, apple-like flesh, is grown in East Asia and has become popular in North America.
Pear trees grow 20 to 40 feet (6 to 12 meters) tall depending on rootstock. The tree has a distinctive upright, pyramidal growth habit when young. The blossoms are white and appear in early to mid-spring. Pears require 60 to 120 days from bloom to harvest depending on variety. The fruit is harvested while still hard and ripened in storage at cool temperatures. Pears held at 65 to 70 degrees Fahrenheit ripen in 3 to 10 days.
Most pear varieties require cross-pollination from a different variety. The trees are long-lived, with productive lifespans of 50 to 75 years and individual specimens surviving more than 100 years. The wood is hard and durable, and the trees are less prone to breakage than some apple varieties.
Pear trees are grown for fresh eating, canning, drying, and value-added products such as pear butter and preserves. The fruit stores well for 2 to 4 months under proper cold storage conditions, extending the homestead fruit season into winter. The trees are productive, with a mature standard tree yielding 100 to 200 pounds (45 to 90 kilograms) of fruit.
Pears are less disease-prone than apples in many regions, particularly in areas with fire blight pressure, though some varieties are susceptible to the disease. Dwarfing rootstocks are available for small-space homesteads.