Difference between revisions of "Pyrus calleryana"
(Created page with '{{SPlantbox |Min ht metric=cm |Temp Metric=°F |image=Upload.png |image_width=240 }} {{Inc| Pyrus calleryana, Decne., although Chinese, in lf. resembles the crenate-serrate Eura…') |
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{{SPlantbox | {{SPlantbox | ||
| − | |Min ht metric= | + | |familia=Rosaceae |
| + | |genus=Pyrus | ||
| + | |species=calleryana | ||
| + | |common_name=Callery pear | ||
| + | |name_ref=Complete Landscaping - ISBN 9780376009272 | ||
| + | |habit=tree | ||
| + | |habit_ref=Complete Landscaping - ISBN 9780376009272 | ||
| + | |Min ht box=25 | ||
| + | |Min ht metric=ft | ||
| + | |Max ht box=50 | ||
| + | |Max ht metric=ft | ||
| + | |height_ref=Complete Landscaping - ISBN 9780376009272 | ||
| + | |lifespan=perennial | ||
| + | |life_ref=Complete Landscaping - ISBN 9780376009272 | ||
| + | |exposure=sun | ||
| + | |water=moist | ||
| + | |water_ref=Complete Landscaping - ISBN 9780376009272 | ||
| + | |features=deciduous, invasive, fall color | ||
| + | |flower_season=early spring | ||
| + | |flowers=white | ||
|Temp Metric=°F | |Temp Metric=°F | ||
| − | |image= | + | |min_zone=5 |
| + | |usda_ref=Complete Landscaping - ISBN 9780376009272 | ||
| + | |max_zone=8.5 | ||
| + | |image=Pyrus calleryana .JPG | ||
|image_width=240 | |image_width=240 | ||
| + | |image_caption=''Pyrus calleryana'' | ||
}} | }} | ||
| + | The '''Callery pear''' (''Pyrus calleryana'') is a species of [[Pyrus|pear]] native to [[China]] and [[Vietnam]],<ref name = "Swearingen" /> in the rose family ([[Rosaceae]]). Callery pears are [[deciduous]] [[tree]]s growing to {{Convert|15|to|20|m|ft|abbr=on}} tall, often with a conic to rounded crown. Their [[leaf|leaves]] are oval, {{Convert|4|to|7|cm|in|abbr=on}} long, glossy dark green above, and slightly paler below. The white, five-[[petal]]ed [[flower]]s are about {{Convert|2|to|3|cm|in|abbr=on}} in diameter. They are produced abundantly in early spring, before the leaves expand fully. Some people find their smell unpleasant. | ||
| + | |||
| + | The [[fruit]]s of the Callery pear are small (less than one cm in diameter), and hard (almost woody) until softened by [[frost]], after which they are readily taken by [[bird]]s, which disperse the [[seed]]s in their droppings. In summer, the [[foliage]] is dark green and very smooth, and in autumn the leaves commonly turn brilliant colors, ranging from yellow and orange to more commonly red, pink, purple, and bronze. Sometimes, several of these fall colors may be present on an individual leaf. However, since the color often develops very late in fall, the leaves may be killed by a hard frost before full color can develop. | ||
| + | |||
| + | Callery pears are remarkably resistant to sicknesses or [[blight]]; they are more often killed by storms or high winds than by sickness. Some cultivars, such as 'Bradford', are particularly susceptible to storm damage. | ||
| + | |||
{{Inc| | {{Inc| | ||
Pyrus calleryana, Decne., although Chinese, in lf. resembles the | Pyrus calleryana, Decne., although Chinese, in lf. resembles the | ||
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contracted abruptly into a long slender stalk, calyx deciduous. | contracted abruptly into a long slender stalk, calyx deciduous. | ||
}} | }} | ||
| − | |||
| − | |||
==Cultivation== | ==Cultivation== | ||
| − | + | In much of [[North America]], [[cultivar]]s of Callery pear are so widely planted as ornamental trees that they have become a ubiquity in many urban and suburban communities. It is tolerant of a variety of soil types, drainage levels and soil acidity. Its crown shape varies from ovate to elliptical. The [[symmetry]] of several [[cultivar]]s lends to their use in somewhat formal settings, such as city streets, [[shopping centers]], [[office park]]s, and [[industrial park]]s. Its dense clusters of white [[blossom]]s are conspicuous in early spring along the boulevards of many eastern [[United States|U.S.]] towns. At the latitude of [[Pittsburgh, Pennsylvania]], the trees often remain green until mid-November, and in warm autumns, the colors are often a brilliant end to the fall color season, although in a cold year they may get frozen off before coloring. In the [[Southern United States|South]], Callery pears tend to be among the more reliable coloring trees. | |
===Propagation=== | ===Propagation=== | ||
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<!--- Type pest/disease info below this line, then delete this entire line --> | <!--- Type pest/disease info below this line, then delete this entire line --> | ||
| − | == | + | ==Varieties== |
| − | + | Several cultivars of Callery pear are offered commercially, including 'Aristocrat', 'Autumn Blaze', 'Bradford' (the commonly planted '''Bradford pear'''), 'Capital', 'Cleveland Select', 'New Bradford', 'Redspire', and 'Whitehouse'. | |
| + | |||
| + | The neat, dense upward growth of 'Bradford' — which made it desirable in cramped [[urban area|urban]] spaces — also results in a multitude of narrow, weak forks, unless corrected by selective [[pruning]] at an early stage. These weak crotches make the Bradford Pear very susceptible to [[storm]] damage where [[snow]]fall is heavy or when [[ice storm]]s occur, or during the high [[wind]]s of severe [[thunderstorm]]s. Because of this, and the resulting relatively short [[life expectancy|life span]] (typically less than 25 years), many groups have discouraged further [[landscaping|planting]] of 'Bradford' itself in favor of other, stronger Callery pear cultivars (such other as 'Cleveland Select'), as well as increased use of locally native ornamental tree species. | ||
==Gallery== | ==Gallery== | ||
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<gallery> | <gallery> | ||
| − | Image: | + | Image:Pyrus calleryana callery pear blossom.jpg| Callery pear blossoms |
Image:Upload.png| photo 2 | Image:Upload.png| photo 2 | ||
Image:Upload.png| photo 3 | Image:Upload.png| photo 3 | ||
Latest revision as of 02:33, 18 May 2011
| Habit | tree
| |
|---|---|---|
| Height: | ⇕ | 25 ft"ft" can not be assigned to a declared number type with value 25. to 50 ft"ft" can not be assigned to a declared number type with value 50. |
| Lifespan: | ⌛ | perennial |
| Bloom: | ❀ | early spring |
| Exposure: | ☼ | sun |
|---|---|---|
| Water: | ◍ | moist |
| Features: | ✓ | deciduous, invasive, fall color |
| USDA Zones: | 5 to 8.5 | |
| Flower features: | ❀ | white |
|
Rosaceae > |
Pyrus > |
The Callery pear (Pyrus calleryana) is a species of pear native to China and Vietnam,[1] in the rose family (Rosaceae). Callery pears are deciduous trees growing to 15 to 20 m tall, often with a conic to rounded crown. Their leaves are oval, 4 to 7 cm long, glossy dark green above, and slightly paler below. The white, five-petaled flowers are about 2 to 3 cm in diameter. They are produced abundantly in early spring, before the leaves expand fully. Some people find their smell unpleasant.
The fruits of the Callery pear are small (less than one cm in diameter), and hard (almost woody) until softened by frost, after which they are readily taken by birds, which disperse the seeds in their droppings. In summer, the foliage is dark green and very smooth, and in autumn the leaves commonly turn brilliant colors, ranging from yellow and orange to more commonly red, pink, purple, and bronze. Sometimes, several of these fall colors may be present on an individual leaf. However, since the color often develops very late in fall, the leaves may be killed by a hard frost before full color can develop.
Callery pears are remarkably resistant to sicknesses or blight; they are more often killed by storms or high winds than by sickness. Some cultivars, such as 'Bradford', are particularly susceptible to storm damage.
Read about Pyrus calleryana in the Standard Cyclopedia of Horticulture
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Pyrus calleryana, Decne., although Chinese, in lf. resembles the crenate-serrate Eurasian type rather than the sharp-eerrate or setose-serrate Chino-Japanese type: lvs. ovate, mostly rounded at base, small, crenate, glabrous: fls. small, with only 2 or 3 styles, in a glabrous infl.; stamens about 20: fr. size of a pea. globular but contracted abruptly into a long slender stalk, calyx deciduous.
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Cultivation
In much of North America, cultivars of Callery pear are so widely planted as ornamental trees that they have become a ubiquity in many urban and suburban communities. It is tolerant of a variety of soil types, drainage levels and soil acidity. Its crown shape varies from ovate to elliptical. The symmetry of several cultivars lends to their use in somewhat formal settings, such as city streets, shopping centers, office parks, and industrial parks. Its dense clusters of white blossoms are conspicuous in early spring along the boulevards of many eastern U.S. towns. At the latitude of Pittsburgh, Pennsylvania, the trees often remain green until mid-November, and in warm autumns, the colors are often a brilliant end to the fall color season, although in a cold year they may get frozen off before coloring. In the South, Callery pears tend to be among the more reliable coloring trees.
Propagation
Pests and diseases
Varieties
Several cultivars of Callery pear are offered commercially, including 'Aristocrat', 'Autumn Blaze', 'Bradford' (the commonly planted Bradford pear), 'Capital', 'Cleveland Select', 'New Bradford', 'Redspire', and 'Whitehouse'.
The neat, dense upward growth of 'Bradford' — which made it desirable in cramped urban spaces — also results in a multitude of narrow, weak forks, unless corrected by selective pruning at an early stage. These weak crotches make the Bradford Pear very susceptible to storm damage where snowfall is heavy or when ice storms occur, or during the high winds of severe thunderstorms. Because of this, and the resulting relatively short life span (typically less than 25 years), many groups have discouraged further planting of 'Bradford' itself in favor of other, stronger Callery pear cultivars (such other as 'Cleveland Select'), as well as increased use of locally native ornamental tree species.
Gallery
If you have a photo of this plant, please upload it! Plus, there may be other photos available for you to add.
Callery pear blossoms
photo 2
photo 3
References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Pyrus calleryana. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Pyrus calleryana QR Code (Size 50, 100, 200, 500)
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedSwearingen
