But along with garden hydrangea in nature, there is also room hydrangea, which is carried out by the same principles. And the main condition is the correctly selected soil with a fairly sour environment. Therefore, in the earthen, brown peat should be present. You can enhance the acidity by watering a potassium permanganate solution (especially during flowering). As an option for planting room hydrangeas, you can use the soil recommended for azalia. It is such a loyalness of turna that creates comfortable conditions for the growth of hydrangea.