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European white birch

Betula pendula

Родина: BetulaceaeРід: Betula

БагаторічнаСередньоДекоративна

Bloom Color: Brown. Main Bloom Time: Early spring, Late spring, Mid spring.Form: Oval, Pyramidal, Weeping.

Опис

Landscape Uses:Firewood, Specimen. A very easily grown plant, it tolerates most soils including poor ones[1, 24], sandy soils and heavy clays. It prefers a well-drained loamy soil in a sunny position[11, 200]. It is occasionally found on calcareous soils in the wild but it generally prefers a pH below 6.5, doing well on acid soils. Fairly wind tolerant though it becomes wind shaped when exposed to strong winds[K]. The silver birch is a very ornamental tree with many named varieties[11, 200]. It also has a very wide range of economic uses. It is a fast growing tree, increasing by up to 1 metre a year, but is short-lived[17, 200]. It is often one of the first trees to colonize open land and it creates a suitable environment for other woodland trees to follow. These trees eventually out-compete and shade out the birch trees[17, 186]. It makes an excellent nurse tree for seedling trees, though its fine branches can cause damage to nearby trees when blown into them by the wind. Trees take about 15 years from seed to produce their own seed. Although closely related, it does not usually hybridize with B. pubescens. It often hybridizes with B. pubescens according to another report. A superb tree for encouraging wildlife, it has 229 associated insect species. A good plant to grow near the compost heap, aiding the fermentation process[14, 20]. It is also a good companion plant, its root action working to improve the soil. Trees are notably susceptible to honey fungus. Special Features: Not North American native, Attractive flowers or blooms. References Carbon Farming Information and Carbon Sequestration Information Temperature Converter Type a value in the Celsius field to convert the value to Fahrenheit: Celsius Fahrenheit: The PFAF Bookshop Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants , Edible Perennials , Edible Trees , Edible Shrubs , Woodland Gardening , and Temperate Food Forest Plants . Our new book is Food Forest Plants For Hotter Conditions (Tropical and Sub-Tropical) . Shop Now

Походження та ареал

TEMPERATE ASIA: Iran (north), Iraq (north), Turkey, Russian Federation-Western Siberia (Western Siberia), Russian Federation (Buryatia, Chita, Yakutia-Sakha), Kazakhstan (north), Mongolia, Russian Federation (Primorye, Amur, Kamcatskij kraj, Magadanskaja oblast, Sakhalin), China (Gansu Sheng, Hebei Sheng, Heilongjiang Sheng, Henan Sheng, Jiangsu Sheng, Jilin Sheng, Liaoning Sheng, Nei Mongol Zizhiqu, Ningxia Huizi Zizhiqu, Qinghai Sheng, Shaanxi Sheng, Shanxi Sheng, Sichuan Sheng (west), Xinjian

Корисні властивості

Edible Parts: Flowers Inner bark Leaves Sap Edible Uses: Tea Inner bark - cooked or dried and ground into a meal[2, 15, 105]. It can be added as a thickener to soups etc or can be mixed with flour for making bread, biscuits etc. Inner bark is generally only seen as a famine food, used when other forms of starch are not available or are in short supply[115, 177, K]. Sap - raw or cooked. A sweet flavour. It is harvested in early spring, before the leaves unfurl, by tapping the trunk. It makes a pleasant drink. It is often concentrated into a syrup by boiling off the water[2, 9, 13, 15, 177]. Between 4 and 7 litres can be drawn off a mature tree in a day and this will not kill the tree so long as the tap hole is filled up afterwards. However, prolonged or heavy tapping will kill the tree. The flow is best on sunny days following a frost. The sap can be fermented into a beer. An old English recipe for the beer is as follows:- "To every Gallon of Birch-water put a quart of Honey, well stirr'd together; then boil it almost an hour with a few Cloves, and a little Limon-peel, keeping it well scumm'd. When it is sufficiently boil'd, and become cold, add to it three or four Spoonfuls of good Ale to make it work...and when the Test begins to settle, bottle it up . . . it is gentle, and very harmless in operation within the body, and exceedingly sharpens the Appetite, being drunk ante pastum.". Young leaves - raw or cooked. Young catkins. No more details are given. A tea is made from the leaves[15, 161] and another tea is made from the essential oil in the inner bark. References More on Edible Uses

Поради

Seed - best sown as soon as it is ripe in a light position in a cold frame[78, 80, 113, 134]. Only just cover the seed and place the pot in a sunny position[78, 80, 134]. Spring sown seed should be surface sown in a sunny position in a cold frame[113, 134]. If the germination is poor, raising the temperature by covering the seed with glass can help. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in a cold frame for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. If you have sufficient seed, it can be sown in an outdoor seedbed, either as soon as it is ripe or in the early spring - do not cover the spring sown seed. Grow the plants on in the seedbed for 2 years before planting them out into their permanent positions in the winter[78, 80, 113, 134].