Callery pear has invasive traits that enable it to spread aggressively. This tree is under observation and may be listed on official invasive species lists in the near future. Review of risks should be undertaken before selecting this tree for planting sites. The various cultivars of this species are more commonly available than the species itself. Callery pear has a weak wood and branch structure and is susceptible to ice storm damage.
- Deciduous (seasonally loses leaves)
- Zone 5
- Zone 6
- Zone 7
- Zone 8
- Full sun (6 hrs direct light daily)
- Dry sites
- Occasional drought
- Dry soil
- Moist, well-drained soil
- Large tree (more than 40 feet)
- Medium tree (25-40 feet)
- Mid spring
Tree & Plant Care
The tree should be specifically pruned to minimize damage from narrowly crotched branches.
Disease, pests, and problems
The tree is susceptible to gray mold and wood rots and may also be targeted by insects such as the Eastern tent caterpillar and leaf rollers. Additionally, the tree’s narrow branch angles make trees prone to breakage and limit its ornamental usefulness.
Disease, pest, and problem resistance
Native geographic location and habitat
Attracts birds, pollinators, or wildlife
Birds are attracted to the fruit of the callery pear tree.
Bark color and texture
The bark is brown and shiny in youth and gray-brown and slightly ridged at maturity.
Leaf or needle arrangement, size, shape, and texture
- Size: 1 ½-3” long and wide
- Shape: ovate
- Texture: glossy
Flower arrangement, shape, and size
- Shape: 5-petal
- Size: 3/8- ¾”
Fruit, cone, nut, and seed descriptions
- Type: Pome
- Size: ½” or less
- Color: russett-dotted
Cultivars and their differences
Pyrus calleryana ‘Aristocrat’ (Aristocrat callery pear):
Leaf has a wavy edge, less prone to branch breaking, more susceptible to fire blight, fall color can be inconsistent.
Pyrus calleryana ‘Autumn Blaze’ (Autumn Blaze callery pear):
Consistent early fall color, more cold hardy, susceptile to fire blight, consistently good fall color (red-purple)
Pyrus calleryana ‘Chanticleer’ (Chanticleer callery pear):
More narrow habit, foliage has a red-purple fall color
Pyrus calleryana ‘Jack’ (Jack callery pear):
Shorter and more narrower than species, yellow in fall
Pyrus calleryana ‘Redspire’ (Redspire callery pear):
Fall color more yellow than red, oval form, less prone to branch breakage, very susceptible to fire blight