Callery pear
Also known as
Bradford pear, Ornamental pear, Calleryana pear
Keep this plantās care guide close at hand.
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Pyrus calleryana, commonly called Callery pear, is a fast-growing ornamental tree native to China and Vietnam and widely planted for its profuse white spring blossoms and glossy green foliage that turns red to purple in autumn. The flowers, though showy, have a characteristic musky odor and are followed by small, hard, bird-dispersed fruits (pomes). Many cultivated forms, such as āBradfordā, develop weak, narrow branch crotches that are prone to storm breakage as trees age. The species tolerates urban conditions, compacted clay, heat, drought (once established), and a broad soil pH range, which explains its popularity and spread. However, it has escaped cultivation in many regions, particularly in the eastern and midwestern United States, where it forms dense, thorny thickets that displace native plantsāprompting restrictions in some jurisdictions. While not recommended for new plantings in areas where invasive, existing trees benefit from early structural pruning, proper siting in full sun, and careful establishment watering. Fruits are generally unpalatable to humans but are relished by birds, aiding spread.
Taxonomy
Properties & Requirements
How to care for Callery pear
Water
At planting and through the first two growing seasons, water deeply once or twice weekly to deliver about 1ā1.5 inches of water (roughly 10ā15 gallons for a young tree) per week, adjusting for rainfall and soil type. Focus on slow soaking at the root zone to encourage deep roots. Allow the top few inches of soil to dry between waterings. After establishment, the tree is moderately drought tolerant and typically needs water only during extended dry spells; always avoid chronically saturated soils.
Light
Provide full sun for best flowering, fall color, and structureāaim for at least 6ā8 hours of direct light daily. The tree tolerates light shade, but bloom quantity decreases, branches may elongate weakly, and canopy density declines. Full sun also helps dry foliage more quickly, reducing disease pressure. Ensure adequate spacing from buildings and other trees to promote balanced crown development and reduce windthrow risks.
Nutrients
Callery pear is not a heavy feeder. Use a soil test to guide amendments. If growth is poor, apply a slowārelease, balanced fertilizer (e.g., 10ā10ā10) at label rates once in early spring to support leaf and flower development. Avoid high nitrogen late in summer, which can stimulate weak, breakageāprone shoots. Maintain a 2ā3 inch mulch ring to improve soil moisture and biology; often this, plus good watering, obviates the need for routine fertilization.
Temperature
Hardy in USDA Zones 5ā9, Callery pear tolerates winter lows near ā20Ā°F (ā29Ā°C) and hot summers when adequately watered during establishment. Once established, it withstands heat, urban conditions, and short dry periods. Protect young trees from extreme winter wind and frost heave with mulch. Avoid siting in frost pockets that can damage early flowers. In very cold climates outside Zone 5, dieback may occur; in warm zones, ensure adequate soil moisture during peak heat.
