Pyrus ussuriensis
| Pyrus ussuriensis | |
| Light: |   |
| Moisture: |  |
| Hardiness: | 4 |
| Soil pH: | 5.6-8.4 |
| Height: | 49' |
| Blooms: | Mid Spring |
| Open Woods Forest | |
| Native to: | |
| Edible Rating: |  |
| Tea: | Yes |
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Pyrus ussuriensis (common name: harbin pear)
Propagation: Seed - best sown in a cold frame as soon as it is ripe in the autumn, it will then usually germinate in mid to late winter. Stored seed requires 8 - 10 weeks cold stratification at 1°c and should be sown as early in the year as possible[1]. Temperatures over 15 - 20°c induce a secondary dormancy in the seed[1]. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in light shade in a cold frame or greenhouse for their first year. Plant them out in late spring or early summer of the following year.
Cultivation: Prefers a good well-drained loam in full sun[1]. Grows well in heavy clay soils. Tolerates light shade but does not fruit so well in such a position. Tolerates atmospheric pollution, excessive moisture and a range of soil types if they are moderately fertile[1]. Established plants are drought tolerant[1].
A very frost resistant tree[2], tolerating temperatures down to below -15°[1], it is a possible rootstock for northern areas[2]. It is used as a rootstock for P. pyrifolia culta in Korea.
This species is a parent of the cultivated Asian pears[1].
Range: E. Asia - N.E. China, Korea.
Habitat: Forests and river valleys in lower mountain zones[2].
Edibility: Fruit - raw or cooked[3]. Size and quality varies tremendously from tree to tree. Good forms have somewhat dry but pleasantly flavoured fruits up to 4cm in diameter, other forms are less pleasant and often smaller[K].
Usage: Used as a rootstock[3] for P. pyrifolia culta in Korea[4], it is very frost resistant[2].
Pollinators: Insects
Soil: Can grow in light, medium, and heavy soils.
Drainage: Prefers well drained soil.
Pollution: Tolerates environmental pollution.
Seed Ripens: Early Fall-Mid Fall
Flower Type: Hermaphrodite
Heavy Clay: Grows in heavy-clay soils.
Also Known As: P. sinensis. non Lind.
Links
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ 2.0 2.1 2.2 2.3 Komarov, Vladimir. Flora of the USSR. Gantner Verlag, 1968.
- ↑ 3.0 3.1 Facciola, Stephen. Cornucopia - A Source Book of Edible Plants. Kampong Publications, 1990.
- ↑ Wilson, E and M Trollope. Korean Flora. Royal Asiatic Society, 1918.