Spirea is a perennial shrub popular with modern landscape design with lignified decorative branches. It is quite often found in areas near amateur gardeners, but this plant is used no less often in the design of urban squares and parks. Not the least role in the popularity of this shrub was played by the fact that it is quite easy to breed. Propagation of spirea by cuttings or seeds is a grateful and easy process. The number of varieties and species of this plant is even more striking. What can we say about the variety of color inflorescences. At least 90 species of spirea are known, and the varieties can not be counted.
So, the first question that arises among gardeners who have chosen the propagation of spirea by cuttings is about when to start cutting it. This is usually done in the first months of autumn, but if you wish, you can start the rooting process at the end of July. If you make cuttings in late September-early October, you can be sure that the vast majority of seedlings will be taken. Even without giving the first roots, the cuttings will go under the snow, and therefore for a long time they will be able to do without watering and spraying. In the spring they will germinate. Some experienced gardeners prefer the propagation of spirea by cuttings to carry out in late February and early March. The root processes on the windowsill, and with the arrival of stable warm weather, they are transferred to the garden in the open air. Despite the fact that this method is more troublesome than the previous ones, since constant monitoring and spraying is required, it is it that gives the highest percentage of survival.
The second question is that many beginner gardeners do not know how to cut the stalk properly for rooting. First you need to choose the best material for planting. A good shoot should be annual, upright and without visible damage. In general, we can safely say that the successful propagation of spirea by cuttings largely depends on successfully selected planting material. Each cutaway shoot must have at least 5 leaves. The lower pair must be completely removed with petioles, and the remaining leaves cut off by 2/3.
Now that the stalk is ready, it needs to be rooted. In order to increase the percentage of probability of survival, the seedlings are soaked before planting for 12 hours in the Epina solution. In general, 2 liters of water is enough, in which 1 ml of the substance must be added. It will also not be superfluous to powder the lower nodes of the stem with any
stimulant of root formation, this will only make our sporea growing stronger. Reproduction of it, as already mentioned, is a troublesome business, requiring compliance with a number of nuances. For example, shoots are planted in wet sand and placed not vertically, but at an angle of approximately 45 degrees. This is done in order to provoke the development of not upper, but lower kidneys. Seedlings must be sprayed from the spray once every 2 days. The container itself, in which spirea is grown, is covered with a film or glass cap. With the onset of frost, the container is dug up in the garden area, and rooting seedlings are sprinkled with foliage. They are transplanted into the open ground only with the advent of spring, when new leaves appear on them.
There are a large number of varieties of this very beautiful ornamental shrub, Japanese spirea enjoys special honor among designers and ordinary gardeners . Its reproduction is no different from other varieties, but the variety of forms and species of this plant is really amazing.