what does it mean to flock a christmas tree

Flocking a Christmas tree means adding a layer of fluffy, snow-like material to the branches to give it a more realistic and festive appearance. It's often done with artificial Christmas trees, but it can also be done with real trees. Flocking is usually done by spraying a mixture of glue and finely ground foam or other material onto the branches, which then clings to the tree and gives it a soft, fluffy texture. The flocking can be colored to match the theme or decorations of the tree, and it can also be scented with various fragrances.