 The varieties of trees that a nursery chooses to propagate is dependent upon what type of farm is buying the reproduced plant, the climate of the nursery, the climate of the tree farm where the trees are to be grown, and the preferences of the retail customers.The most commonly grown species include Eastern White pine, Virginia pine, Scotch pine, Colorado Blue spruce, Norway spruce, Serbian spruce, White spruce, Balsam fir, Grand fir, Frasier fir, Canaan fir, Noble fir, Turkish fir, White fir, Blue Ice Carolina and Sapphire cypress (both are sterile hybrids of the Arizona cypress), Leyland cypress, Eastern Red cedar, and Douglas fir.These trees have become popular because of their appearance, color, aroma, texture, or a combination of these properties.