Christmas tree farming is the process of growing trees to use as Christmas decorations. Farmers plant special kinds of 'Christmas trees', which are sometimes called evergreens because they stay green all year long. The farmers take care of their trees all year round to keep them healthy and looking nice. They trim them to make them look like the perfect Christmas tree shape, and they make sure they get enough water and sunshine. After several years, these trees are ready to be cut down and used as decorations during the holiday season!