Pines grow well in acidic soils and require good soil drainage. Pine seeds (from the cones) are commonly eaten by birds and squirrels and the seeds are then spread by these wildlife creatures. Pine trees make attractive ornamental plantings for homeowners and are widely used for windbreaks or privacy screens. Pine trees can look very attractive in the winter landscape. Most pine needles are green and most tend to appear as darker green and thus display a stark contrast against a dull or white winter landscape. Pine trees are also known for their pleasing smell and are commercially used for winter and in home Christmas decorations. The cones, pine boughs, and trees all are distinctive and used as Christmas decorations.