How long did it take for monet to paint the water lilies?

Claude Monet painted his series of "Water Lilies" over several years, with the most significant work occurring between 1897 and 1926. He created approximately 250 paintings featuring the water lily theme, often working on multiple canvases at once. The project was a lifelong endeavor, deeply influenced by his garden in Giverny, and it evolved as his style and techniques developed.