White pine trees are tall, evergreen trees with long, soft needles that are usually blue-green. These trees have a pyramid shape when they are young but become more rounded as they grow older. White pines produce cones that hold their seeds, which are not covered by any outer layer. They can grow up to 80 feet tall and spread out to about 40 feet wide. White pine trees thrive in cool, moist environments and are often used for timber and as Christmas trees because of their strong wood and attractive appearance