Given the perishability of the material with which this huge carpet is created, the flowers are laid out either on the same day as the festival or the night before the festival. On Saturday evening the architects of the Flower Festival , generally the authors of the various paintings, will draw the contours of the paintings on the roadway, first with chalk and then with lime, based on the original sketch, also using perforated cartoons ("dusting" technique). The placement of the flowers is done by placing the petals, taken from the baskets, within the contours already traced on the street. On Sunday evening Mass is celebrated in front of the Church of Saint Maria of Cima and, after a solemn Eucharistic celebration in which the bishop of Albano often takes part, the carpet is covered by the religious procession of the celebrants who bring the Blessed Sacrament to the not so distant Collegiate Church of the Holy Trinity. The carpet is maintained, with replacements of withered petals, until Monday evening, when the destruction of the floral display bychildren (the so-called "shoulder" ) takes place.