I’Approximately 1 in. in length, these needles don’t even fall when they’re dry, providing excellent needle retention. The color is a bright green. The most common Christmas tree in the U.S., the scotch pine has an excellent survival rate, is easy to replant, has great keepability and will remain fresh throughout the holiday season.m a paragraph. Drag me to add paragraph to your block, write your own text and edit me. As a Christmas tree Scotch pine is known for its excellent needle retention and good keepability. It resists drying and if permitted to become dry does not drop its needles. When displayed in a water filled container it will remain fresh for the normal 3 to 4 week Christmas season. Like all natural trees it is readily recyclable and has many different uses following the Christmas holidays.