Only in sunny and protected locations of Central and Southern Europe Frostresistant. During the winter season, its important to protect them from Rain and low temperature.The soil should be permeable and strongly mineral. Garden earth is improved with sand, pumice and lava. When the earth is covered with a roughly 5cm thick layer of coarse, mineral material, it will be easier to get the wild herbs out. Planting time is from March to August. Succulent Fertilizer is given from April too September.