2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-15 04:10
Astilba is a beautiful and easy-to-maintain perennial, distinguished by a large varietal variety and a huge range of colors of inflorescences. She will undoubtedly decorate any composition with her unusual flowers, but to preserve the decorative appearance, the plant needs periodic transplantation.
When is a transplant required?
In one place, without a transplant, a perennial can grow up to 10 years. But experienced florists recommend replanting astilba to another place every 4 years to maintain lush flowering.
The root system of the plant annually increases by 4-5 cm and in 3-4 years it grows so much that there is not enough space for the roots, as a result of which they end up on the soil surface.
The resulting exposure of the roots can lead to negative consequences for the flower:
- vegetative buds will suffer;
- flowering will worsen;
- root rot will appear;
- susceptibility to pests will increase;
- the death of the plant will come.
In addition, in 4 years, the powerful root system of astilba completely takes away all available nutrients from the soil, which depletes and depletes it. There is no need to delay the transplant, otherwise the old roots will be too difficult to separate , which will complicate the process, and the plant itself will be difficult and will take a long time to adapt to a new planting site.
What time to choose?
Astilba is an unpretentious plant, it can be transplanted at any time of the summer season … Often, gardeners notice in June or July that a flowering bush has grown too much and clogs up neighboring plantations. Then it is better to carry out the transplantation process in the summer, without waiting for the fall. This must be done very carefully and carefully, carefully making sure that a clod of earth does not separate from the plant, and then water it abundantly.
The most optimal time to change the planting site of an adult plant is autumn . In the southern regions of Russia, it is better to start this procedure in October, in the Moscow region and the middle lane - in the first decade of September, in the northern regions of the country - at the end of August.
Compliance with the deadlines will enable the plant to adapt to the impending drop in temperature, easily endure the winter period and not lose its decorative qualities.
In the spring, it is more desirable to transplant only those species of perennials that bloom in the second half of summer and September. A good time for a spring transplant is the second half of April-early May. In order for the plant to bloom in the same season, it needs to provide abundant watering.
Process description
When choosing a place for transplantation, one should take into account the flowering period of a particular astilba variety. Early (soft pink Sister Theresa, deep pink Rheinland, Japanese Koln, white Weisse Gloria) and late flowering representatives (soft lilac Pumila, coral Straussenfeder, purple red Aphrodite) thrive both in the sun and in the shade. Astilba, which blooms in the middle of summer (bright Rubin, creamy Pich Blossom, Korean Astilbe koreana), prefers shady corners of the garden more.
The perennial is undemanding to the soil, but for a longer and lush flowering it needs frequent watering. Feels great near water bodies, since near them there is an opportunity to recharge with groundwater.
When transplanting and dividing the bush in the fall, you should leave at least 5-6 buds on it in order for the plant to better endure the winter period. It is recommended to cut the leaves, leaving only the stalks.
A plant at the age of 3-4 years for transplantation and reproduction by the method of division can be easily divided by hand. If a powerful rhizome has formed, then it is better to resort to the help of a shovel. The soil for a new place should be prepared in advance and add humus.
Planting stages
Preparation of planting holes . When transplanting several specimens, you need to dig holes to a depth of 15-20 cm, the diameter should be 2 times larger than the roots of the plant. The distance between them for low-growing varieties should be left at 25-30 cm, for tall species - 50-55 cm.
Landing . Pour a small amount of complex fertilizer 30-40 g at the bottom of each hole (Kemira-Horti-2 is better), you can add a handful of bone meal and mix them with the ground. Pour out a bucket of water and wait for the liquid to soak into the soil. Lightly shake off the soil from the root of the plant and lower it into the hole. Compact the soil and add a little earth on top again.
Water abundantly, even if the soil is damp . This is to prevent air pockets from forming around the plant.
Follow-up care
Astilba is very easy to care for . The main maintenance and care are reduced to timely abundant watering. In the absence of moisture, the plant loses its decorative properties and looks sloppy. Leaves begin to wilt, and flowers noticeably decrease in size. For better plant development and prolongation of the flowering period, fertilizing with complex fertilizers can be carried out.
In the spring, it is recommended to feed the perennial with nitrogen supplements. They contribute to the rapid emergence of new foliage.
Flowering averages 30-40 days , although some varieties can bloom throughout the summer and in the first decade of September. Dried flowers must be removed immediately so that the plant looks aesthetically pleasing and well-groomed.
During the formation of buds, the bushes need phosphorus trace elements, and by the end of flowering, potash. Their introduction not only increases the growth of healthy stems and the splendor of the inflorescences, but also stimulates the formation of fertile seeds. Some time after applying top dressing (while moisture remains), the soil near the plants should gently loosen, while trying not to hurt the rhizome.
Perennial is winter hardiness, tolerates cold well, but is sensitive to spring temperature changes , since it tends to quickly tune in to the growing season. When frost appears after warming, it is worth covering the perennial with spruce branches, old foliage, dry branches or covering material.
Astilba attracts flower growers also by the fact that it is almost uncharacteristic for her to be exposed to diseases and pests . It is extremely rare for the roots of some varieties to succumb to root knot nematodes. Preparations for combating the pest are ineffective, therefore, the diseased bush should be destroyed along with part of the soil, so that in the future there will be no deplorable repetitions. Plants should not be planted in this place for 1-2 years.
The growth of a perennial can also slow down when a slobbering penny eats its foliage. There is only one control measure - manual collection of the insect from the leaves.
In order for the soil to retain its fertility longer, between the bushes of astilba it must be mulched with pine needles or rotted foliage … If the rhizome is exposed in a relatively young plant (if it is not planned to be transplanted), it should be sprinkled with a layer of fertile soil. Be sure to repeat the procedure for adding land to the base in the fall (before the end of the summer season).
Astilba is in perfect harmony with most horticultural crops and will undoubtedly decorate any site or local area . She is completely unassuming to care for, and a timely transplant will help preserve her beauty and prolong her luxurious flowering.
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