Effective micro-organisms (EM®) at the service of your plants! here is the spring gift idea, pretty, useful and original 🌱 In this box you will find: 💦 A 35 cl Oya to plant. The ideal solution for gently watering plants, in pots or planters, both outside and inside. 💧 Eight EM® ceramic beads to improve and revitalize irrigation water. A box of EM® ceramic powder that will contribute to maintaining your plants in good health. 🌱 An “aromatic herbs” plant card How does an oya work? Thanks to the porosity of terracotta, oya slowly irrigates the soil. A humid zone is then created around the roots of your plant. Place the ceramic beads in the oya. Spread a thin layer as is or or mix it directly into your soil or potting soil. Count about 10 grams (one tablespoon) for a 15l pot of soil.