Community gardens are a booming sector in Europe even if the professionalization is not a reality yet, there is no training for garden facilitator.The Gardeniser project comes from the identification of an innovation: the facilitator garden training. The innovation emerged during the Grundtvig multilateral project “EU’rban Gardens Otesha” (EUGO). Community gardens are excellent tools, an efficient way of bringing people together, and teaching the characteristics of sustainable development. Yet, the management of community gardens needs improvement and their functioning lacks of balance between technical tools and social tools. In most of the European countries, gardens are managed and organized entirely by volunteers, whereas they can benefit to the whole community, with sometimes the support of the public authority.The garden facilitator ensures longevity and quality in the management and the life of the garden. The garden facilitator constitutes a new “green job” category. In practice, too often, the garden facilitator is a gardener and not a facilitator or a facilitator and not a gardener. Moreover, this person is in charge of the coordination of the garden, of the external communication with the partners and the financial partners. Those three aspects are key-part for the functioning of the garden.