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Common Walnut (Juglans regia)
It is hardy to zone 5. It flowers in June, and the nuts ripen in October. The flowers are pollinated by Wind. The plant is self-fertile.
The kernels are eaten raw or used in confections, cakes, ice cream etc, a delicious flavour.
The dormant plant is very cold tolerant, tolerating temperatures down to about -27°C without serious damage, but the young spring growth is rather tender and can be damaged by late frosts.
Some late-leafing cultivars have been developed, these often avoid damage from spring frosts and can produce a better quality timber tree.
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