Blue Cyanus - a modest relative of phlox. It does not have brightness and spectacularity, but, meanwhile, it blooms very beautifully and looks great on any garden plot. In addition, cyanosis blue has a number of medicinal properties. The article will talk about planting, care and reproduction cyanosis.
- a brief description of
- Popular varieties
- Location selection
- Site preparation
- Sowing seeds
- Care Tips
- Watering
- Weed control
- Mulching
- Top dressing
- Pruning
- Diseases and pests
- Other breeding methods
- Cuttings
- Division of rhizomes
- Use in landscape design
a brief description of
Blue cyanus (or polmonium) is a perennial plant with powerful creeping roots, high stem (reaches 120 cm) and large paniculate inflorescences. 
The leaves are collected in a rosette at the base of the flower. The stem is covered with small leaves that grow perpendicular to it.
Popular varieties
Despite the rather large variety of varieties of cyanosis, it is grown infrequently. The most popular varieties are:
"Variegata"- a beautiful perennial. Shrub resistant, after flowering remains collected. Foliage with yellow and green stripes. Flowers are small, blue, like bells. Feels good and sunny position, and in partial shade. 
Location selection
Like any plant, cyanosis develops best in the sun. Although in a small shadow, she also feels rather well. The soil is best picked fertile, light, with an abundance of humus and neutral acidity. 
The place itself can be in any part of the garden. The plant tolerates frost and strong winds.
Site preparation
Preparation of the site for planting is to prepare drainage, fertilization and watering.
If the soil is heavy, clay, it must be mixed with sand in the ratio of 1: 1. This will make the earth easier. Acidic soils must be neutralized with lime or dolomite flour.
Sowing seeds
Cyanosis very well grows from seeds.
Sowing should be carried out in the fall, immediately after collecting the seeds. So they will harden and undergo a natural stratification. The optimal daily average temperature for the wintering of the winter is + 2-3 ° С. 
Polymonium is sown in grooves with a depth of 1.5-2 cm.With abundant germination, crops can be thinned out. In spring, when the temperature rises to + 4 ° С, the seeds will grow.
Flowering begins in the second year after sowing. Also, the seeds can be sown in the spring, but before that you must keep them in the refrigerator.
Care Tips
Polimonium is an unpretentious plant, its care is only in careful watering, weeding and disease prevention.
Watering
Sinyuha loves moisture. Without proper moisture, it begins to fade and loses its beauty. Try to choose a place for the plant with closely located groundwater. 
Or provide good watering, especially in the hot period. Try to prevent the soil from drying out near the roots of the plant.
Weed control
Regularly remove weeds that grow near cyanosis. They can not inflict special harm, but they spoil the appearance of the site where cyanosis grows.
Mulching
To preserve moisture and reduce weed growth, use mulch. Compost, sawdust, peppered humus, peat are well suited as mulch. This will reduce loosening.After all, when loosening, the risk of damaging the creeping roots of polymonium is very high.
Top dressing
Cyanosis very well responds to fertilizers. The first feeding should be carried out in early spring. It is best to use a mineral complex for this (superphosphate, nitroammofoska). 
Superphosphate should be made again before flowering. Top dressing of flowers in the summer will prolong flowering until late autumn. Feed better mineral fertilizers.
Pruning
At the end of flowering cyanosis loses its aesthetic appearance. Therefore, the faded plants should be cut and leave only shoots of a length not exceeding 25 cm. An additional advantage will be the active development of the root system after this operation. 
In winter, all the bushes cut almost completely, leave only the stumps about 5 cm long. In this form, the plant will overwinter remarkably.
Diseases and pests
Cyanosis is practically not susceptible to diseases, it does not affect pests. All problems arise due to improper or insufficient watering.Withstand watering mode, do not let the soil dry out, and the plant will not give you any inconvenience.
Other breeding methods
In addition to growing with the help of seeds, cyanosis well reproduces in other ways.
Cuttings
With this method of reproduction, flowering occurs earlier than at sowing. Cuttings harvested in the summer. To do this, cut from the root buds of small shoots up to 15 cm long. Remove the leaves from the bottom of the cutting, treat them with solutions to form roots (for example, "Appin"). 
Now they are ready to land in the ground. Cover each planted stalk with a bottle or jar. Periodically open the cuttings for airing and watering. When cuttings take root, cover can be removed. After that, they can be transplanted.
Division of rhizomes
The second breeding method is rhizome division. Apply it to plants older than 5 years. Thus, you will not only get a new plant, but also rejuvenate the old bush. 
The division is carried out in early spring, until the plant has budded. Dig the selected bush and gently clean it off the ground. Use a sharp knife to divide the rhizome into two parts.
After planting, water the plant well.
Use in landscape design
Polymonium is often used in landscape design to produce multi-level flower beds with prolonged flowering. Monochromatic bluish flowers are well combined with other plants. 
Very good plant looks and in the decoration of fences and walls of economic buildings, as well as to create mixborders.
Curtains from different grades of polymonium look very picturesque. Here are examples of the use of blue cyanosis in landscape design and photos.
A beautiful and unpretentious plant, for all its simplicity, will please more than one gardener.
