Harvesting of medicinal plants takes place throughout the year in the WALA Garden. Winter and spring are the seasons for harvesting roots, e.g. valerian (Valeriana officinalis), marshmallow (Althaea officinalis) and lovage (Levisticum officinale), but also barks such as birch (Betula pendula), oak (Quercus robur) and horse chestnut (Aesculus hippocastanum). However, the main harvesting season is in the summer months of June and July. During this time almost every day begins with a harvest. Towards the end of the season, in the autumn, the fruits are harvested for the WALA elixirs, including hawthorn in September and quince at the beginning of October.