- You Will Get 72 Seeds Of Elm, Siberian Elm Tree Seeds. - Hardy zones 3-9. - Being adaptable to hot and cold climates, this deciduous shade tree will grow in moist or dry soil once established. - It will grow best in full sun. Leaves turn yellow in fall. - Grows 50-70 ft tall and is fast growing. - Must try growing as a bonsai too. - Grows easily from seed. - No pre-treatment is required for seeds. - Plant directly in spring after danger of frost.