Usually, aster blooms until frost. These beauties are not afraid of the cold, so you can plant seedlings in the Urals in May. It is desirable that by the time of planting in the open ground, the seedlings were a month old, small, about 6 cm, with good roots.
Aster seeds are quite large, they can be spaced out. I sow first in small containers, then planted in individual cups or small boxes. Aster is not afraid of transplanting, in a spacious pot builds up the root system.
Soil can be purchased or make it yourself. I usually take garden soil, add humus, purchased soil, ash, you can sand. To get a light soil, good air and water permeability.
Aster seeds quickly lose germination, it is better to take very fresh. In the second year, half of the seeds may not germinate.
I sow the seeds to a depth of about 1 cm. I water and put a container in a bag, a few days later sprouts appear. I put immediately close to the window, so that it was light and cool.
Water the asters infrequently, but abundantly. In containers for seedlings, be sure to have drainage, so that excess water can drain off. Do not pour water on the aster, otherwise it can fall ill with black leg and die.
The place she likes sunny, nonacidic, fertile soil. Do not put fresh manure under the planting of asters!
High cut asters planted at a distance of 25-30 cm from each other. They branch well and form many shoots with flowers. Small, curb planted closer, about 15-20 cm from each other. Then, as they grow, they bloom in a continuous carpet.
It is interesting to look groups of flowers of one color. And the low ones can be planted in different colors, will be a motley border or island. For beautiful lush blooms, remove old flowers in time.