White Pine: Needle retention is good to excellent. White pine has very little aroma, but, conversely, is reported to result in fewer allergic reactions than do some of the more aromatic species. To produce a 6-foot tree requires 6-8 years on good sites.
Scotch Pine: 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.
Canaan Fir: Canaan (pronounced "Ka-naan", with emphasis on the last syllable) is a relative newcomer to the Christmas tree market. It has many similarities to both Fraser and balsam firs in growth and appearance. Unfortunately, this similarity has led to a great deal of confusion.
Concolor Fir: As a Christmas tree, white fir has good foliage color, a pleasing natural shape and aroma, and good needle retention. Leaves (needles) are small and narrow and occur in rows. On upper branches, needles tend to be thicker and more curved than those on lower branches. Needles are usually 1/2 to 1 1/2 inch long, pointed or notched at the tip, bluish-green when young turning dull green with age. Typically, they are flat, without stalks.