The real Christmas trees at Lowe's can range in price depending on the size and variety of tree. For example, a small 6-foot Fraser fir tree may cost around $39.99, while a large 8-foot Balsam fir tree can cost around $119.99. You can also purchase pre-decorated trees, which may be more expensive, depending on the level of decoration. Additionally, Lowe's offers a variety of artificial trees, which can range from $59.99 to $299.99.