Description

Kerria japonica reaches 3 meters in height. She has straight shoots resembling twigs and a cone-shaped crown. The pointed serrated leaves are similar to the leaves of raspberry bushes: their length is 10 cm, and their lower side is slightly pubescent. In the summer months, they become light green, and in the autumn — yellow. Some varieties have double buds. Flowers reach a little over 4 cm in diameter. The main flowering period begins in May and ends in August. It repeats itself in autumn. The fruits of the shrub plant are black drupes. It is known that Japanese kerria does not bear fruit in the Moscow region and in other regions of the middle zone.

Landing

Time to disembark

In order for the kerria plant to take root and grow quickly when planting and caring in the open field, it is important to follow the basic principles of cultivating shrub plants. Plantings begin in the spring, before the sap flow process. You can plant kerria about a month before the first frost. If you place the root system in special protective containers, then landing is possible in any season, except for the winter period.

The most suitable place in the garden is a corner not blown by the winds and illuminated by sunlight. Shrubs can also grow in partial shade, but they will have fewer flowers.

Gardeners do not plant them under direct ultraviolet radiation, flowers, as the petals can quickly fade. Therefore, it is best to plant a plant under the crown of sprawling trees.

Landing features

Like any other forest shrubs, perennial yellow keria needs special conditions when planting and caring. It suits moist fertile soil, which is rich in humus, or loamy soil. When disembarking, they dig a hole 60×60 cm (in this case, the depth should be 40 cm).

Then a small amount of the mixture is poured into it, which includes fertile soil, humus and sod land (proportions — 2: 3: 3) and 60 g of complex fertilizer containing minerals. After that, you can install a bush in the recess, then spread its rhizomes.

The next step is to fill the empty space of the hole with the remaining mixture and tamp it down a bit. Then the seedling is watered. In this case, the root collars are positioned so that they are flush with the surface.

Care

Visually landing and care can be seen in the photo. When growing kerria pleniflora, it is important to maintain the decorativeness of the shrub. To do this, it is important to cut the branches, make sure that it grows correctly and treat it in time. A plant planted in open soil requires regular watering, loosening the soil around, weeding, fertilizing.

Gardeners water it when the surface of the earth is a little dry. They carefully care for the Japanese terry kerria during flowering, as well as during the dry summer months. Before watering, it is important to make sure that the water is warm and sufficiently settled.

In rainy summers, you can refuse to water, as abundant moisture harms the proper growth of the bush. After irrigation, the soil is loosened and weeds are weeded out. When the flowering period is over, you can start feeding.

For this, an infusion of mullein in a ratio of 1 to 10 or compost with ash that remains after burning logs, tree bark or branches is suitable. In autumn, Japanese pleniflora is covered with a layer of fallen leaves, and in winter, they make sure that the snow cover above it is as high as possible.

Transfer

This shrub can adapt quickly and is suitable for transplanting. Therefore, its transplantation in a new corner of the garden is possible at any suitable time. But it is better to do this when there are no leaves on it, that is, in the spring months or in the middle of autumn.

From the photo and description it is clearly visible and clear how to dig a bush and remove it from the ground. It is better to prepare a new hole in advance, and lower it into it with an earthen clod. After that, repeat the actions that were taken during the initial disembarkation.

Next, gardeners regularly water the bush so that the root system receives abundant moisture and can take root in a new place.

reproduction

For this plant, the following vegetative propagation methods are provided:

• Cuttings. In the middle of summer, young cuttings are harvested. April is best suited for harvesting lignified ones. In order for the plant to multiply, it is important that the buds swell on it. The cut at the bottom is made oblique. The cuttings should be placed in a place where there is partial shade, inside a cold greenhouse, where they are left for the winter. At the end of the following spring, each of them is planted in individual containers and continues to be grown at room temperature. In a year, the shoots will be ready for further cultivation.

• Root suckers. In September, the offspring are separated from the plant and planted. Since their rhizome is developed and fibrous, they will quickly be able to take root, provided that they are properly looked after.

• Layering. After the start of sap flow, developed stems are selected and placed in a ready-made 7-centimeter groove. Then the stem is fixed in one position. After 10-15 days, new shoots will appear. When they reach 10-15 cm in height, the groove is covered with nutrient soil, and the branches themselves — about half. The roots will grow in the autumn.

• Division. Most often, division is made during transplantation. For this, the rhizomes are cleaned from the ground, and then it is cut into 3-5 parts. It is important that all divided seedlings have sufficiently developed roots and strong stems. «Delenki» are landed in the same way as during the first landing.

After completion of work, shrubs are plentifully irrigated with water.

pruning

When the kidneys swell, carry out the first pruning. Gardeners cut stems that have been damaged by cold weather, as well as dry and injured branches. Young shoots are shortened by one fourth.

Due to pruning, the bushes will be more magnificent and at the same time more compact, and flowering will be more abundant. When the plant fades, stems older than 4 years are cut to the very base, which turned out. Green shoots are shortened a little so that the shrub retains splendor.

Diseases and pests

If an ornamental shrub grows in good conditions, it rarely gets sick. But sometimes seedlings are affected by spider mites. This happens if the air is too dry or if the foliage is dirty. Another reason is poor weeding and untimely cleaning. Pests are killed with insecticides.

Kerria on the site — photo