Remember! Soil preparation is the most important!
You must prepare the soil both when sowing and when laying new turf. Every step of the soil preparation must be followed. Generally speaking, the turf needs a substrate layer of 10-15 cm for optimal growth. It is advised to use AGRO CS Intensive Lawn Substrate, suitable for rocky and clayey soil. If you cannot use a substrate, try to modify the soil so that it is a combination of earth and sand (minimum depth 12 cm). This can be achieved by using silica sand, which you mix with the soil.