New and Unread Tree-Mails
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Mountain Ash |
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Korean Mountain Ash |
| Micromeles alnifolia | Accepted |
| Sorbus alnifolia | Synonym |
| Aria alnifolia | Synonym |
| Plant Habit: | Tree |
| Sun Requirements: | Full Sun Full Sun to Partial Shade |
| Water Preferences: | Mesic |
| Soil pH Preferences: | Slightly acid (6.1 – 6.5) Neutral (6.6 – 7.3) |
| Minimum cold hardiness: | Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F) |
| Maximum recommended zone: | Zone 6b |
| Plant Height: | 25 to 40 feet, to 60 feet |
| Plant Spread: | 20 to 30 feet |
| Leaves: | Good fall color Deciduous Broadleaf |
| Fruit: | Showy |
| Fruiting Time: | Late summer or early fall Fall Late fall or early winter |
| Flowers: | Showy |
| Flower Color: | White |
| Flower Time: | Late spring or early summer |
| Uses: | Provides winter interest Flowering Tree |
| Propagation: Seeds: | Stratify seeds: moist at about 41 degrees F for 3 months |
| Pollinators: | Various insects |
| Miscellaneous: | Tolerates poor soil Monoecious |
| Awards and Recognitions: | Other: 2011 Great Plant Picks Winner |
| Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Feb 13, 2019 10:28 AM This Korean or Alder-leaf Mountain-Ash from central China to Korea and Japan is different than most other Sorbus in that it has simple and not compound pinnate leaves. The leaves do look like alder or beech or hornbeam leaves that get a good yellow to orange or golden brown fall color. The handsome gray, smooth older bark looks like beech. It bears the white flattish corymbs of 6 to 10 flowers in each cluster in late spring. The fruit is a pome (apple-like fruit) about 3/8th to 5/8th inches long that are bloomy, speckled, and pink-red to orange-red in color in September-October and persisting longer. This species is a little more tolerant of heat than most other mountain-ash species, but it is still susceptible to borers from heat and drought stress. It does not do well with harsh conditions or pollution. It grows about 1.5 feet/year or a little more. I've heard of it for many years, but I have only seen it once in my life so far, at the Morris Arboretum in Philadelphia, PA in Zone 6b. [ Reply to this comment | |
