Landscape design of the site. American linden: photo, description, varieties Black linden
species affiliation | Linden |
plant type | Trees; |
Group | decorative leafy |
Reproduction methods | Seed and vegetative (cuttings) |
Landing time | Sowing - in the fall; cuttings - in early spring |
Landing pattern | 3.0 - 5.0 m between plants |
Soil Requirements | Light loam, black soil |
Light requirements | Sun, partial shade |
Humidity Requirements | moderate watering |
care requirements | Pruning weak branches, shaped pruning |
plant height | 15 - 40 m |
Color spectrum | Greens; |
Type of flowers, inflorescences | Corymbose with membranous leaf-shaped bract |
flowering period | July August |
seasonal decoration | Spring; Summer; Autumn; |
Usage | Solitary plants; Hedges; Plants of the second plan; |
USDA zone | 2; 3; 4; 5; |
Linden (Tilia) - tall trees with an openwork crown - the genus includes about 80 species, differing in the size of the tree, leaf blade and flowers.
Linden is a relatively fast growing species. Thanks to the openwork and spreading crown, it forms an extensive shadow, and the large surface area of the leaf blades produces a significant amount of oxygen and moisturizes the air well. In urban conditions of gas pollution and smoke, linden is one of the few resistant species. A special characteristic that linden has is its unusual delicate, honey aroma. Therefore, it is she who is preferred when creating green spaces in urban environments.
In autumn, linden foliage creates a special bright golden yellow background that gives a special mood to landscape plantings in parks and residential areas. Also, the positive aspects of growing linden include the fact that, unlike birch, linden leaves fall almost all at the same time and they can be completely removed in 2-3 doses. If the foliage is not removed, then the fallen leaves quickly rot and fertilize the soil.
The most decorative is basswood (Tilia americana), which differs from other types large leaves(15 - 20 cm long), flowers (1.5 - 2 cm in diameter, collected 5 pieces in corymbose inflorescences) and fruits (about 1 cm in diameter). But less resistant to urban conditions than linden heart-leaved (Tilia cordata) And common linden (Tilia x intermedia) « Pallida", the leaves of which are covered with a wax coating. Linden American " Fastigiata"has a decorative narrow pyramidal crown.
very high in landscape design appreciate linden felt (Tilia tomentosa). It has beautiful, silvery foliage on the underside and a very neat wide-pyramidal crown.
The American linden is distinguished by the decorativeness of the leaves. Tilia americana f. macrophylla», european linden , f. grape-leaved ( Tilia europaea f. vitifolia) And linden heart-leaved« candida» - with whitish leaves.
Botanical descriptionAmerican linden is a deciduous tree reaching a height of 20 - 35 (up to 45) meters with a trunk diameter of up to 1.2 measures. The crown is spreading, the branches are often drooping. The bark is gray or light brown with narrow fissures. The roots are large, going deep and wide. TaxonomyThe composition of this species is a matter of debate. Some authors understand it in a narrow sense, on a par with Tilia caroliniana, Tilia heterophylla And Tilia mexicana, regarded as independent species. Others see in the latter only varieties Tilia americana. The above description and range refer only to a narrow interpretation of the species. If we consider the species in a broad sense, then it will include plants with leaves, the bottom of which white color and densely and shortly pubescent. The range in this case expands to Florida and Mexico. EcologyAmerican linden, along with sugar maple, is a co-dominant maple-linden forest, most common in western Wisconsin, central Minnesota, but also extending east to New England and southern Quebec. With a small abundance, it is also present in many other forest associations. Cultivation and useAmerican linden is well propagated by seeds, cuttings and grafting. Young trees have a high growth rate, but are severely damaged by various insects. The species is grown as decorative tree capable of giving a dense shadow. Linden is sometimes planted on the windward side of the garden for protection. fruit trees. Linden leaves and flowers are edible. Excellent honey plant. The culture of the American linden is possible in the north in areas with a mild climate (Juneau (Alaska)). The following varieties of American linden are known: "Nova" and "Duros" - with a straight crown, "Frontyard" - with a pyramidal crown, "Redmond" - with a conical crown. WoodThe wood is pale brown, sometimes almost white or reddish; soft, fine-textured; it does not sting very easily. The density of wood is 0.4525. It is used for the manufacture of wooden products, inexpensive fittings, car bodies. Very good for woodcarving. The inner layer of the bark (bast) is strong and fibrous, used for the production of ropes, ropes. The wood is often used for the production of electric guitar bodies, considering its properties to be similar to alder and poplar wood, because it is light, strong and resonates well. In medicineWrite a review on the article "American Linden"NotesAn excerpt characterizing Linden AmericanI didn't know what it was, but I knew for certain that I had to remember it. And she tried her best. Suddenly everything disappeared, and I again found myself inside the same huge pyramid and saw all my shining "friends". There were twelve of them again, and they, just like the very first time, stood in a circle, and I stood inside. Only this time, in addition to the warmth emanating from them, I also felt a strange deep sadness. And I realized that they came to say goodbye ...To my great surprise, I took it very calmly, as if I knew that this was not forever. They came one by one and put their right hand on my chest, which made me feel unusually warm and calm. Each touch left a different luminous color on me, and in the end my body shone with twelve amazingly bright, changing colors. I again heard strange music inside me, and everything disappeared ... I didn’t remember anything else. With a double feeling, both loss and happiness, I quietly returned home. And here a big surprise awaited me. My mother, half-conscious, was waiting for me in my room. The world turned upside down, and in quiet horror I thumped from my "sparkling dreams" into a ruthless reality ... I could not lie. But I didn't really know what to say. And I also felt that my mother knows very well that this is something, again, somehow connected with my “strange talents”, which, unfortunately, neither she nor I can avoid talking about ... To my great relief, she said nothing that night. Maybe she didn't even know what to say. But the next morning, the windows in my room were securely boarded up. Mom did not return to this incident for another two weeks, as if giving me time to comprehend the “deed”. But of course, that didn't make it any easier for me. Dad was on a business trip at that time and I hoped with all my heart that maybe it would somehow “carry through” and everything would be forgotten before his arrival. But, no such luck… One fine morning, before leaving for work, my mother said she wanted to talk to me. And of course, for me there was no big secret - about what ... I honestly, like all normal children, went to school, did my homework, played with my "ordinary" friends ... and missed others immensely, about my extraordinary, sparkling "star friends". School, unfortunately, also had its difficulties for me. I started walking at the age of six, because during the test it turned out that I could go to grades 3-4, which, of course, no one liked. My school friends thought that everything was too easy for me, and for some reason their mothers simply disliked me for this. And it turned out that at school I also spent almost all the time alone.
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In America, linden is distributed from New Brunswick to Manitoba south in Canada, and south to North Carolina, Kentucky, and Nebraska in the USA. The life form is a tree up to 39 m high, with a crown up to 22 m in diameter, dense, broadly pyramidal, later elongated, ovoid, almost round. The bark of American Linden (black) is dark, almost black, with long, shallow furrows.Shoots glabrous, green (brownish). The leaves are broadly oval, up to 20 cm long, asymmetrical, pointed at the top, heart-shaped at the base, sharp-toothed, dark green in summer and lemon yellow in autumn.
From above, the leaf of American linden (black) is dark green, glossy, and light green below, with tufts of hairs (beards) in the corners of the veins. The flowers are yellowish, quite large, up to 1.5 cm in diameter, collected 6-15 in drooping inflorescences. Abundant flowering occurs in the second half of July. The flowers are so rich in nectar that blooming trees literally teeming with bees collecting it. The resulting linden honey has an unusual aroma. The fruits are spherical nuts, without ribs, 6-9 mm in diameter. Linden American (black) grows relatively slowly, its annual growth is up to 60 cm in height, up to 45 cm in width.
Shade-tolerant, sufficiently wind-resistant, undemanding to soil conditions, tolerates drought well, is quite frost-resistant, but in severe winters there is a possibility of freezing of annual shoots. Prefers sheltered from the wind, bright place with fertile, moist soil.Sowing with immature (beginning to turn brown) seeds should be done immediately after they are collected. It is advisable to store the seeds in a tightly sealed glass container at a temperature of about 0 ° C. Sowing with mature seeds sprouts in the 2nd - 3rd year. It is recommended to prepare seeds for sowing using scarification (surface damage to the hard shells of seeds) or stratification (long-term keeping of plant seeds at a certain temperature). When scarifying, acid pre-treatment is recommended; during stratification, place in a peat-sand mixture (sand) for 6 months at a temperature of 0 - 5 ° C, or under variable conditions (2 - 3 months of warm, then cold stratification). Seeding depth 2 - 3.5 cm.
Linden American (black) is recommended for single and group plantings of large-sized trees. Cultivated since 1752. An extremely ornamental linden, distinguished from others by large leaves and flowers collected in small inflorescences with a long bract. Looks good in alley and single plantings. Linden American (black) gives a deep shade and is especially effective in the form of tapeworms (single planting) on a free lawn area. Possesses average resistance to gases. It is used in landscape design of urban areas.
Three different decorative forms American linden (black): vine (f. ampelophylla) with large lobed leaves, large-leaved (f. macrophylla) with very large leaves, more than 20 cm long and pyramidal (f. fastigiata) - with a narrow pyramidal crown.
Spreading
In Canada, this species is found from the Atlantic coast west to southern Manitoba, and also grows south in the deciduous forests of the eastern United States.
Tree
Sometimes it reaches a height of 30 m with a diameter of 1.2 m, but more often the height is from 18 to 21 m, the diameter is about 0.75 m.
Wood
Light, ranging in color from creamy white to pale brown, straight grained, with a fine, uniform texture due to uniform growth and lack of sharp contrast between early and late wood zones. The breed is soft, light, with a dry density of about 416 kg / m³, low-strength, non-viscous.
Drying
Dries without significant cracking and deformation.
Strength
In terms of most indicators of the mechanical properties of wood, American linden is similar to poplar, but has a higher strength under shock loads.
Fortitude
The wood is not durable.
Technological properties
It is processed very easily and gives a smooth surface. It has good nailability, adheres satisfactorily, can be etched with dyes and polished without difficulty.
Application
Structural veneer, plywood, carved products, shutters, blinds, drawing boards, casting models, piano keys (pianos, grand pianos), turning products, barrel bottoms, beehives, containers for food products, match straws, wood wool.