Grow House Grow’s clay tile is proudly handmade in collaboration with Clay Imports in Dolores Hidalgo, Guanajuato, México. They are responsibly produced with non-lead based glazes and recycled porcelain. Our clay tiles are made to last a lifetime, and not much longer than that. Unlike our cement tiles, this tile body is designed to biodegrade after 150 years. Visit our Tile FAQ page to learn more.