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Japanese raspberries are known to most gardeners as raspberry purple, or Rubus phoenicolasius. The plant belongs to perennial weaving vines from the Pink family. The homeland of raspberries is North China, Korea and Japan. In recent years, this species has been actively cultivated in European countries and North America.
The stalks are reed-like, for a year they can grow up to two meters. Cirrus leaves, compound, with three to five leaves. Inflorescences, consisting of several flowers on prickly pedicels, develop on two-year-old shoots. Flowering occurs in late spring. The average diameter of the flower is 8 mm; the petals are red or pink. Pedicels are short, with golden-red bristles.
Berries are edible multi-shoots of oblong shape, on average 10 mm long. Ripening, they acquire a red color, and when fully matured, which occurs in the summer period or the first decade of autumn, they become dark purple, almost black.
Taste is good enough. The pulp is fragrant, moderately sweet. Japanese raspberries are used fresh for cooking jam, stewed fruit, making jams and jellies, and is also used as a filling for pies. Experienced gardeners use the picked berries in winemaking. The constant use of raspberries of this variety is useful for the prevention of anemia and leukemia. Valuable properties of the berry are preserved after heat treatment.
Japanese raspberries: variety description
Reproduction of Japanese raspberries is carried out by seeds or rooted layering. The simplest option is reproduction by layering or root offspring. In the fall, cuttings are dug up with the root and transplanted to a permanent place. The plant takes root perfectly and, subject to reproduction technology and proper care, takes root very quickly.
When raspberries are propagated by seeds, a standard scheme for growing seedlings is used. Seeds are pre-stratified, after which they are sown in autumn or spring.
It should be borne in mind that Japanese raspberries can aggressively spread throughout the infield and, as a result, inhibit the growth and development of other cultivated plants.
Japanese raspberries are unpretentious and perfectly adaptable to almost any soil and climatic conditions. When growing, it is recommended to adhere to the following agricultural practices:
- use for landing areas with humus, not too dry, fresh soils with a neutral or alkaline reaction;
- in the middle zone of Russia, trim off the prolific annual shoots in the last decade of October or in the first half of November, and in the southern regions by the end of November;
- treat the soil at a depth of 5-10 cm, after watering or rains, since the root system of raspberries is quite superficial;
- to feed raspberries with organic, necessarily complementing the application of fertilizers with plentiful irrigation;
- keep planting clean by regularly removing weeds;
- mulch raspberries with organics to maintain optimal soil moisture;
- to treat plants from diseases and pests: raspberry beetle, glass, weevil, etc.
Japanese raspberries do not require shelter: during very severe winters, the aerial parts of plants sometimes freeze, but in the spring they recover very quickly.
Many domestic gardeners very highly appreciate both the taste qualities of ripe Japanese raspberry and its decorative properties. Plants look very attractive not only during flowering, but also at the stage of harvest ripening, which makes them perfect for landscaping garden plots and gardens.
Japanese raspberries are characterized by the presence of vertical main shoots, long hanging or creeping lateral, as well as the active formation of offspring, so you should choose the right environment for it. Most often, raspberries are used to create hedges, as well as as a dominant in landscape design.
Tips and reviews of gardeners
Japanese raspberries perfectly combines high winter hardiness and decorativeness. Gardeners characterize the plant as a medium-sized shrub with a height of 1.5-1.8 m, a very attractive appearance, with slightly wrinkled malachite-green leaves, silver-white on the underside. The racemose inflorescences from pink or purple flowers look very impressive against foliage.
Japanese gardeners and summer residents also call raspberries “wineberry”, or “wine berry,” since the crop is often used to make aromatic and tasty homemade wine.
Japanese raspberries in the garden decor
Most often, raspberries are propagated by root offspring. However, when cultivating this ornamental plant, one should be very careful: improper agricultural technology can turn a shrub into a rapidly spreading weed that can quickly destroy other cultivated plants on a personal plot.