The black walnut is a native of eastern North America, where it grows alongside large rivers as far north as the 'Canadian border. It is a large tree attaining heights of 30 to 40 metres. Under forest competition it develops a tall, clear bole; the open-growri form has a short bole and broad crown. The bark is grey-black and deeply furrowed.
The white willow is found mainly in lowland woods alongside rivers where, together with poplars and alders, it grows on sites with a high water table. It stands up well to prolonged spring floods. Its range of distribution embraces most of Europe, eastwards to western Asia and southwards to North Africa, mainly in the valleys of large rivers. It is a light-demanding tree, resistant to frost, and does well even in heavy and acidic soils. It is marked by the vigorous production of stump sprouts. In practice, it is propagated mainly by cuttings which root readily.
It provides bees with their first feast of the year. The seed ripens and is shed in May. At the base of the leaf stalk are small semiheart-shaped leaf-like bodies (stipules) which soon fall. This tree is propagated, both in the wild and artificially, by seed, as cuttings root very poorly. It is a frost-resistant species that thrives in poorer and drier soils. The goat willow is an important pioneer tree in forestry, and animals are fond of nibbling its bark.
The butternut is indigenous to North America, growing in the eastern part from the 35th parallel northwards to Canada. It occurs in mixed, broad- leaved woods, alongside rivers and in hill country, on deep, fertile soils, attaining heights of up to 30 metres. The bark is grey, divided by shallower fissures than those of the black walnut. The twigs and buds are grey, sticky-pubescent, and the pith of the twigs contains air spaces.
Often growing alongside brooks near villages are the so-called pollarded willows, the result of cutting-back the trunk and of repeated cutting of the branches over a period of 2 to 5 years. In practice, new individuals are propagated by cuttings.
The tree is cultivated in gardens and avenues for its fruit - nuts - which it begins to bear from about its tenth year. The green husks split in September and October to release the nuts, whose oily kernel is very tasty and nourishing. The high quality wood (the heartwood is brownish, the sapwood greyish) is used to make furniture.
The white willow is found mainly in lowland woods alongside rivers where, together with poplars and alders, it grows on sites with a high water table. It stands up well to prolonged spring floods. Its range of distribution embraces most of Europe, eastwards to western Asia and southwards to North Africa, mainly in the valleys of large rivers. It is a light-demanding tree, resistant to frost, and does well even in heavy and acidic soils. It is marked by the vigorous production of stump sprouts. In practice, it is propagated mainly by cuttings which root readily.
It provides bees with their first feast of the year. The seed ripens and is shed in May. At the base of the leaf stalk are small semiheart-shaped leaf-like bodies (stipules) which soon fall. This tree is propagated, both in the wild and artificially, by seed, as cuttings root very poorly. It is a frost-resistant species that thrives in poorer and drier soils. The goat willow is an important pioneer tree in forestry, and animals are fond of nibbling its bark.
The butternut is indigenous to North America, growing in the eastern part from the 35th parallel northwards to Canada. It occurs in mixed, broad- leaved woods, alongside rivers and in hill country, on deep, fertile soils, attaining heights of up to 30 metres. The bark is grey, divided by shallower fissures than those of the black walnut. The twigs and buds are grey, sticky-pubescent, and the pith of the twigs contains air spaces.
Often growing alongside brooks near villages are the so-called pollarded willows, the result of cutting-back the trunk and of repeated cutting of the branches over a period of 2 to 5 years. In practice, new individuals are propagated by cuttings.
The tree is cultivated in gardens and avenues for its fruit - nuts - which it begins to bear from about its tenth year. The green husks split in September and October to release the nuts, whose oily kernel is very tasty and nourishing. The high quality wood (the heartwood is brownish, the sapwood greyish) is used to make furniture.
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In planning your garden, it is often difficult to make anything a narrow area at the side garden of the house.
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