Elm trees are large and grand shade trees. Elm trees grow well even in the most severe urban situations. The elm tree transplants easily and grows rapidly if conditions are favorable. Healthy elm tree leaves are lustrous dark green in the summer and turning yellow in the fall. Elm trees grow best in full sun but are tolerant to moderate shade too. They have a great tolerance to soil pH, growing well in the range of 5.5 to 8.0. They are also tolerant of compacted clay soils, well drained sandy soils and most soils in between. They grow best in nutrient rich, moist well drained soils.