Fraxinus americana 'Autumn Purple' - Autumn Purple White Ash
Fraxinus americana 'Skyline' - Skyline White Ash
Fraxinus pennsylvanica 'Cimmaron' - Cimmaron Red Ash
Fraxinus pennsylvanica 'Patmore' - Patmore Green Ash
Ash trees are a deciduous group of trees belonging to the Oleaceae family, native to a good portion of the northern half of the world. Most Ash compete with Oak and Maple for mature size, with many having a mature height of between 50 and 120 feet. They tend to grow quickly, and do well in wetter soils. They will perform well with full sun exposure or in partial shade.
As demonstrated in the picture above, many varieties perform well in substandard soils and can put up with the abuses that urban plantings often endure, such as road salt during winter months. There are several selections one can make for truly beautiful fall color, including the 'Autumn Purple" (above), with the outermost foliage turning a port wine red and the inner leaves turning a cheddar yellow.
Pruning on the Ash should be done during the early winter months, cutting out any dieback, removing branches that are encroaching and/or rubbing on others. Establishing/maintaining a central leader should also be considered when cutting back an Ash.