Siberian Elm (Ulmus pumila): Not recommended for planting in urban environments due to slim flux and cankerworm susceptibility and a tendency to become weedy. Very similar to American Elm but with smaller leaves, round buds and prolific seed production. Shows some DED resistance and is useful as a farm shelterbelt species. Height: 15 m; Width: 12 m. Prefers full sun or partial shade. Zone 3

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