Thuja folded or giant

Thuja folded or giant

A giant (or folded) thuja is a large tree (about 60 m tall, wild and 16-12 m cultivated), which has a fibrous reddish-brown bark and a dense low crown. In cold winters, cultivated folded thuja is susceptible to frostbite. In Moscow, there is a shrub specimen that has reached 2.3 m in height at the age of 16 and has a crown diameter of 1.5 meters.

Skeletal (main) branches of thuja are arranged horizontally, small branches with "drooping" tips, too. In folded thuja, in contrast to western thuja, narrow leaves are about 1 mm wide, and grow more crowded - each cm on the shoot has from 8 to 10 whorls. Stomatal distinct whitish stripes are visible on the underside. The leaves, which are in a plane, are layered on top of each other, the lateral ones - with inconspicuous glands and straight edges. In thuja 10-12 mm, oblong cones, having scales with notches at the top, the seeds are dipteran and flat.

The homeland of the giant thuja is the raw territories on the Pacific coasts of North America. It has been cultivated since 1853. There are about 50 varieties of giant thuja: "Zebrina", "Whipcord" and others, which are rare in our country.

Thuja Whipcord - This is a dwarf folded thuja approximately 1.5 meters in height. Every year it increases its growth by 7-10 cm. The tree is spherical in shape, with long (also rounded) weakly branching "drooping" shoots with widely spaced needles. The tips are sticking out, sharp, it is green in summer and "bronze" during frosts.

Thuja Zebrina (Aureovariegata) - bred in 1868. In contrast to the wild, it grows much slower. By the age of 24, it can only be about 3 meters high. Her crown is dense and low, large horizontal branches with "drooping" tips. Young shoots have a cream-colored strip that becomes brighter in spring.

Thuja folded (giant) - features, care and planting, reproduction

Thuja folded (thuja plicata) belongs to the cypress family. The first appearance of this tree was noted in the western regions of North America. Even then, the tree was recognized as decorative. Then it was brought to Europe in 1853.

Both trees and shrubs are characteristic of the natural growing environment. Most often, trees are found in the mountains and on the banks of reservoirs, and shrub forms are found at the boundaries of their ranges. Proceeding from this, the coastal and mountain varieties are distinguished. A warm, humid maritime climate is suitable for coastal. Mountainous is more stable and adapted to continental conditions.

Also, the plant has different shapes in appearance. There are three such forms:

  • dark green
  • columnar
  • weeping.

All three forms are in demand and are widely used for different purposes and needs of gardeners.

Folded or giant thuja is a large tree, which in natural conditions reaches a height of up to 60 meters, and cultivated - 12-16 meters. The tree has a fibrous reddish brown bark and a dense, low crown.

The main branches of the thuja have a horizontal arrangement. They are also called skeletal. In addition to them, the plant also has small branches, which also have a horizontal arrangement, with drooping tips.

Folded thuja leaves are narrow, their width is no more than 1 mm. On the branches, they grow crowded - from 8 to 10 such leaves can be located on one centimeter of the shoot. On the lower surface, stripes can be observed that are clearly visible and have a whitish color. The leaves that are in the plane are layered one on top of the other, and the lateral leaves have inconspicuous glands and straight edges.

The fruits of thuja folded are cones that reach a length of 10-12 mm. They have an oblong shape. On their tops there are grooved scales in which the seeds are stored. Thuja seeds are dipteran and flat.

A feature of the giant thuja is that it is the largest species.

This is a very thermophilic tree, which is not adapted to very low temperatures, therefore, it can get frostbite during frost. And with prolonged storage at low temperatures, it can dry out.

An adult thuja plicata tree is distinguished by a dense and dense crown, the lower branches sag to the ground due to their own weight. Thuja needles are scaly and have a cruciform arrangement.

The advantages of this tree are its decorative and unpretentious care. Very often it is planted in garden plots, as a decoration. The tree perfectly adapts to urban conditions, therefore it is indispensable for landscaping the city.

The homeland of growth is considered to be the damp areas of the Pacific coast of North America. In nature, this species grows near water bodies, swamps, along river banks, in wet places.

Also, the advantages of the plant include the fact that it is often used for medicinal purposes. Young shoots of the tree are used to treat:

  • cystitis
  • liver diseases
  • gallstone disease.

Thuja oil is also used for medicinal purposes. So it is used as a component for air fresheners and deodorants.

Another distinguishing feature is the rapid growth and value of wood.

Thuja folded or giant. Description.

Another type of thuja is thuja folded, or gigantic (Thuja plicata), the most famous cultivar of which is the cultivar Kornik (Kornik). Polish conical shape, characterized by a rather strong growth, reaching 2.5-3 m in height after 10 years. Shoots are wide, intense green with yellow tips. Requires a fairly fertile and moist soil. Hardy, good haircut.

Tui can grow in the sun and in partial shade. In sunny places, they sometimes suffer from temperature fluctuations or become dehydrated from frost and dry out. Better to plant in places protected from the wind. When planting, do not deepen, the root collar is at ground level. Soil: sod or leafy soil, peat, sand (2: 1: 1) with the addition of 500 g of nitroammofoska for each adult plant when planting mineral fertilizers. Tui generally respond well to fertilization and watering. They can grow on any soil: marshy, peaty, clayey, dry sandy loams, etc. On clays and marshes, it is still better to drain with a layer of 15-20 cm when planting. The first month after planting, it is recommended to water once a week (10 liters per plant) and carry out sprinkling. In the dry season, watering 20 liters per plant twice a week and sprinkling. Thuja love moist soils, in dry places and in the shade of the crown they thin out.

Tui have a superficial root system, so shallow loosening and mulching of the soil with peat or bark with a layer of 7 cm is desirable.As already mentioned, thuja tolerates a haircut best of all, but you need to remember that the haircut should be moderate, no more than 1/3 of the shoot length, crown molding along if necessary, remove dry shoots annually in spring.

Thuja plant care

Tui are rather picky beauties, but you should still adhere to certain rules when caring for them. Let's dwell on the most important points.

Watering Tui

Crops are very fond of watering, respond well to sprinkling. For the first weeks after planting, it is recommended to water the seedlings using 10-50 liters of water per seedling. Arranging sprinkling for the trees, this will have a beneficial effect not only on moistening the soil, but will also fill the roots of Tui with moisture, remove dust from the needles, and the plant will begin to breathe better. After watering, you will need to loosen the soil to a depth of 8-10 centimeters.


The coniferous plant Thuja is fertilized with mineral compounds. Most often, Kemira-wagon is used for such purposes, the calculation is 50-60 g per 1 square meter. But, when applying top dressing during planting, re-fertilization is carried out only after 2 years.

Pruning plants

Tui respond well to pruning. The splendor and density of the crown depends on the number and frequency of haircuts. There is no strict framework for the pruning period, but it is best to carry out such a process in the spring, before the buds begin to open.

When using a coniferous plant as a hedge, a haircut will be a must. Tapeworms will need at least a sanitary cleaning of the branches, thinning the cuttings.

If it is necessary to form crowns, this process begins after the culture has grown to the required volume. It is allowed to carry out the first pruning not earlier than after 2 years of growth in a new place. Sharpened secateurs are used for cutting, which will not "chew" the shoots and damage them.

Tui adult transplant rules

If you have not foreseen a good and suitable place for Tui in advance, you will need to transplant an adult plant. Before such a process, it is necessary to "bayonet" the soil using a sharp shovel at a distance of 40-50 cm from the location of the trunk. Then the culture is hooked up together with the near-trunk territory. A tree is transported with a wheelbarrow to a new place, trying not to damage the clod of earth. Plant the tree on a new site immediately.

If the coniferous culture is too large, then the place is pierced 1 year before planting. This is necessary to obtain sufficient space for the growth of young roots inside the soil clod. This approach will allow both to extract the culture painlessly, and to transplant it to a new place.

Wintering Tui in the open field

With the arrival of autumn, it will be necessary to stop watering and fertilizing Tui, because the culture will have to prepare before the dormant period. Trees that are less than 5 years old are covered with spruce branches for the cold season. The site itself must be mulched using a thick layer of peat.

Mature trees can hibernate without any shelter.

If there are snowy winters in your area, then be sure to tie the Tui branches with twine. This eliminates the process of branches breaking under the weight of snow. With the arrival of the first spring scorching rays of the sun, conifers are covered with a non-woven covering material to prevent pine needles from burning. If you notice the formation of cracks in the bark, then with the arrival of a stable warm temperature, you will have to treat these areas with a garden varnish.

Thuja: planting and care

Thuja pyramidal. Photo:

Thuja are planted in one row with the distance between plants. If you have enough space and want to create a wider hedge, you can plant it in two rows, with a distance between rows up to 1 m. Then it is better to place the trees in a checkerboard pattern. The growth of seedlings is beneficially affected by feeding with a weak solution of slurry. However, nitrogen fertilization should be used with caution.

In the first year of planting, caring for thuja consists of removing weeds and loosening the soil. Plants are pruned only if the shoots are too long. Starting from the second year, the main care is hedge trimming. It is carried out twice: in autumn or spring and summer, at the end of the growth of shoots.

Plants are trimmed both from above and from the sides with special garden shears, cutting off a third of the annual shoot. If the hedge is supposed to be maintained at a certain height, then the apical haircut is carried out constantly at the same level, removing all the grown shoots. So that there are no glades in the hedge, all dried up plants are promptly replaced with new ones. To do this, you need to have spare copies.

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Thuja folded: decorative forms

Within the framework of the natural species, it is customary to distinguish between the folded mountain (or eastern) and coastal. The former prefers a warm climate, and the latter a continental one. In decorative park culture, plants are divided into three forms, depending on their external characteristics.

  • Thuja plicata f. Atrovirens is one of the most spectacular pyramidal evergreen trees. The glossy foliage of a rich dark green is harmoniously emphasized by the reddish-brown wrinkled bark. It grows up to 6-7.6 m, develops slowly, lives up to 80 years.
  • Thuja plicata f. Pendula (photo above) is a very spectacular thuja (folded), highly decorative form with a characteristic weeping crown. The shrub is sprawling, grows slowly and reaches 1.8-4.5 m by the age of 10, shoots grow up to 30 cm per year. The branches are drooping, curved in an arc, the needles are bright green in summer and with a grayish tint in winter.
  • Thuja plicata f. Fastigata - has an even columnar crown shape. The tree reaches a height of 12 m. The spread of the crown is from 2-3 m to 3-3.6 m. It is undemanding to soils, relatively winter-hardy.

One of the most ornamental varieties widespread in park culture is the Gelderland folded thuja with a cone-shaped fluffy crown. High decorativeness is achieved due to the dense needles of a rich dark green color and a bright bronze shade in winter. For 10 years, the plant reaches 5 m in height. It is relatively frost-hardy, but in cold regions it requires shelter for the winter.

Tui attracts with their dense crown, aroma of needles and clear crown shapes. It is a very valuable material for landscaping. They are used in single and group plantings, as a living wall, for the formation of alleys. In the garden, folded thuja (photo above) goes well with other conifers (oriental spruce, European larch), with cypress, hemlock.

Watch the video: Thuja Little Giant Globe Arborvitae. Superb Evergreen for Low Hedges, Pots u0026 Small Spaces