One of the most outstanding medium-sized trees for the landscape, this variable and disease-resistant East Asian elm bears small, glossy, deciduous or semi-evergreen leaves. Cold hardiness of this elm varies widely, with the hardiest tolerating severe winters (such as in the central United States). The flowers and winged seeds appear in late summer and autumn and are ornamentally insignificant.
Plant this all-season beauty in full sun in well-drained, humus-rich soil. It tolerates alkaline soil and occasional drought. In its hardiest forms it can weather USDA Zone 4/5 borderline temperatures. Do not confuse Chinese elm with the more cold-hardy Siberian elm (Ulmus pumila). Semi-evergreen selections are usually somewhat cold-tender. Give it a prominent location where its striking bark and other features can make their full ornamental impact.
Dwarf forms are ideal for containers and bonsai. (Source: learn2grow.com)
Genus - Ulmus
Species - Parvifolia
Common name - Chinese Lacebark Elm
Pre-Treatment - Not-required
Hardiness zones - 5 - 8
Height - 15'-70' / 4.60 - 21 m
Spread - 10'-60' / 3 - 18 m
Plant type - Tree
Vegetation type - Deciduous
Exposure - Full Sun, Partial Sun
Growth rate - Fast
Soil PH - Acidic, Neutral, Alkaline
Soil type - Loam, sand, well drained
Water requirements - Average Water, drought tolerant
Landscape uses - Container, Feature Plant, Mixed Border, Shade Trees, Street Trees, Topiary / Bonsai / Espalier
Germination rate - 90%
Bloom season - Summer - Fall
Leaf / Flower color - Green / Red
|Germination||1. Soak overnight in warm water. |
2. Fill an oblong container or planting tray with a soil that drains well and does not hold water. Use a container that drains from its bottom. The seeds will rot and not germinate if planted in heavy soils or containers that remain saturated.
3. Place the seeds on top of the container's soil, spacing them out from each other. Cover the elm seeds with a 1/4-inch layer of soil, pressing it down with your hand to firm it up.
4. Water the container after planting. Thoroughly saturate the soil until water runs from the bottom drain holes. Keep the soil moist, but not wet while the Ulmus parvifolia seeds germinate, in approximately one week.
5. Situate the container in a greenhouse or warm, bright area. Keep the seeds and seedlings protected in the warm area throughout winter.
6. Remove the Ulmus parvifolia seedlings and divide them when they are approximately 4 to 6 inches tall. Plant each seedling into its own container, as they are more difficult to transplant after they grow too tall.