Maintaining Monet's water lily pond is a daily task that requires removing the aquatic weeds and pollen from poplars floating on the surface. At the time of the painter, a gardener was entirely devoted to the maintenance of the pond. He had to wash the water lilies every morning. To do this, he rode a boat among the water lilies and dipped the buds in the water before they opened in the morning. Today, the gardener does not clean all the water lilies but takes care daily to collect the aquatic grasses and other leaves that have fallen on the surface of the water.