The flowers are a central element of the Festa del Corpus in Sitges, with stunning floral carpets (known as "catifes de flors") lining the town's streets. Local residents and volunteers work together to create intricate, colorful designs using thousands of petals from various flowers such as carnations, roses, and daisies.

These designs often depict religious symbols, nature-inspired patterns, or other artistic motifs. The floral carpets are carefully crafted the night before the main procession, and the sight of the town transformed by vibrant, fragrant pathways is one of the highlights of the celebration.

As part of the tradition, the Corpus Christi procession walks over these floral creations, symbolizing the passage of faith through the streets, and adding a special ephemeral beauty to the event.