Contents
1. Description
Pyrus Calleryana, also known as Callery pear, is a deciduous tree species that is native to China and Vietnam but is widely cultivated in the United States and other countries. It belongs to the Rosaceae family and is known for its showy springtime blooms and colorful fall foliage.This tree species can grow up to 40 feet tall and 30 feet wide, with an upright oval or pyramidal shape. It has a smooth gray to brown bark that becomes scaly as the tree ages. The leaves are glossy green, oval-shaped, and have a slightly serrated edge. In the fall, the leaves turn to shades of red, orange, and yellow.The flowers of Pyrus Calleryana are white and have five petals. They bloom in early spring, around the same time as the leaves begin to emerge. The fruit of this tree is small, round, and brown, and is not commonly consumed by humans due to its gritty texture.
2. Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Rosales |
| Family | Rosaceae |
| Genus | Pyrus |
3. Appearance
Pyrus Calleryana has an upright oval or pyramidal shape that can grow up to 40 feet tall and 30 feet wide. The bark is smooth and gray to brown, becoming scaly as the tree ages. The leaves are glossy green, oval-shaped, and have a slightly serrated edge. In the fall, they turn to shades of red, orange, and yellow. The flowers of Pyrus Calleryana are white and have five petals. They bloom in early spring, around the same time as the leaves begin to emerge. The fruit of this species is small, round, and brown, with a gritty texture that makes it unappealing to humans.
4. Care Guide
Pyrus Calleryana is a hardy tree species that is relatively easy to care for. Here are some tips for keeping your tree healthy:- Water: This species prefers well-draining soil that is kept consistently moist. Water deeply once a week or more often during hot, dry weather.- Fertilization: Fertilize in early spring with a balanced fertilizer, such as a 10-10-10 formula.- Soil: Pyrus Calleryana prefers well-draining soil that is slightly acidic to neutral. Amend heavy clay soils with organic matter to improve drainage.- Sunlight: This tree species prefers full sun but can tolerate some shade.- Hardiness Zones: Pyrus Calleryana is hardy in USDA zones 5-9.
5. Common Pests & Diseases
Pyrus Calleryana is generally resistant to pests and diseases but can be affected by the following:- Fire blight: This bacterial disease causes leaves and branches to wilt and turn black. Prune affected branches and dispose of them immediately.- Pear psylla: These small insects can cause distorted growth and yellowing of the leaves. Use insecticidal soap or neem oil to control them.- Scale insects: These pests can cause yellowing and stunted growth. Use horticultural oil or insecticidal soap to control them.
6. Habitat
Pyrus Calleryana is native to China and Vietnam but has become naturalized in many other countries. It is commonly planted as an ornamental tree along streets and in parks due to its attractive blooms and fall foliage. It prefers well-draining soil and full sun but can tolerate some shade.
7. Question and Answer
Q: Is Pyrus Calleryana drought-tolerant?
A: While this species can tolerate some drought, it prefers consistently moist soil.Q: How often should I fertilize Pyrus Calleryana?
A: Fertilize in early spring with a balanced fertilizer, and repeat once or twice during the growing season.Q: How can I control fire blight on my Pyrus Calleryana tree?
A: Prune affected branches and dispose of them immediately. Avoid pruning during wet weather, as this can spread the disease.Q: Can Pyrus Calleryana be grown in a container?
A: While this species can be grown in a container, it may not reach its full size and potential due to restricted root growth.
8. Related Plants
– Pyrus communis (Common pear)- Pyrus ussuriensis (Siberian pear)- Pyrus pashia (Wild Himalayan pear)- Pyrus pyrifolia (Asian pear)
9. References
– “Callery Pear.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=282208.- “Pyrus calleryana.” UC Statewide IPM Program, www2.ipm.ucanr.edu/agriculture/pear/Pyrus-calleryana/.- “Pyrus calleryana.” Plant Database, www.gardening.cornell.edu/homegardening/scene7a3f.html.
