Plant Profile: Pyrus calleryana

This tree poses several issues, and it would be wise to explore alternative options. Please refer to the recommendations listed in the left-hand column.

The Bradford Pear is a robust, broadly pyramidal deciduous tree that can reach heights of up to 43 feet. It is a popular choice in landscaping due to its fast growth and ability to thrive in various urban environments, including conditions of drought, air pollution, and heat. While it adapts well to different soil types, it thrives best in full sunlight for optimal blooming, although it can tolerate partial shade. Furthermore, it is easy to transplant and is among the first trees to produce an abundance of white flowers in the spring, creating a stunning display. However, its branches grow at steep angles with weak junctions that are prone to breaking under stress from age, wind, or ice, resulting in a lifespan of only 10 to 20 years. Additionally, it is classified as an invasive species in the southeastern United States. In the fall, the tree showcases vibrant foliage, but it is also one of the earliest trees to leaf out. Its fruit is inconspicuous and hidden by the leaves.

The flowers emit a scent reminiscent of decaying flesh, which often causes people nearby to wrinkle their noses, pinch them shut, and look around in confusion. This tree is typically used as a temporary specimen in residential areas, commercial properties, school grounds, and shopping malls. In mall parking lots, customers have been seen reacting to the unpleasant odor by returning to their cars and leaving.

The 'Bradford' cultivar features branches that grow upward and is narrower than other varieties of Callery pear. It tends to form tight crotches that are susceptible to splitting during heavy winds and rain. The leaves are nearly round, with a length-to-width ratio close to 1, while typical Callery pears have more spreading branches and leaves with ratios approaching 2. Although 'Bradford' is generally considered resistant to pests and diseases, the species itself is highly vulnerable to fire blight. A study conducted at NC State University involved inoculating six 'Bradford' trees with the fire blight pathogen, and all developed the disease. However, it was later determined that these trees had been misidentified as 'Bradford' cultivars when they were actually Callery pears.

In terms of pests, diseases, and other issues, limb breakage is frequent due to poor branch angles, and this tree is known for its short lifespan. It is considered a weedy and invasive species that can transmit fire blight to other Rosaceous plants, so it may be prudent to select a different tree for planting.

Quick Identification Tips: