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Caucasian Wing Nut is a large wide spreading deciduous tree with a short trunk and deeply furrowed bark. The leaves are pinnate and up to 60cm long with toothed leaflets. The decorative, pendulous catkins that appear in summer and last into the autumn, are lime green and up to 50cm long. It does better in moist loamy soil and seems to thrive as far north as the Lake District, Cumbria, where it rains a lot, but also gets a fair amount of snow in the winter.
Pterocarya fraxinifolia
Common name: Caucasian Wing Nut.
Native: Caucasus and Northern Iran.
Provenance: Germany
Size and spread (10 years): 10m
Treatment required: Deeply dormant requires 29 weeks stratification treatment.
Seeds / kg: c.17,000
Ideal sowing period: Spring
Soil conditions: Moist loamy soils.
Planting instructions: Grows well where winters are mild and summers not too hot. There is a very fine example at Sizergh Castle, in the Lake District.
Mature height: 25m+
| Weight | 10.00 g |
|---|---|
| Genus | Pterocarya |
| Size | Seed Pack (approx 50 seeds) |
| Family | Juglandaceae |
| Flowering Month | May |
| Colour | yellow |
| Hardiness | Hardy |
| Life Cycle | tree |
| Evergreen | deciduous |
| Interest | autumn foliage |
| Requires | damp |
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