On September 16th, 2017, Pastor Joachim Zirkler, Director of Studies of the LWF Center Wittenberg, representing the congregation, planted a small leaved linden tree on behalf of the Church District of Boucles de la Seine in the United Protestant Church of France.
On October 1st, 2017, during a parish festival, a quince tree was planted in front of the church hall on the grounds of a former orchard in Marly-le-Roi as the partner tree for the Church Circuit „Boucles de la Seine – Ouest“, west of Paris.