About the product
Casting dense shade with its spreading, vase-shaped canopy, Japanese zelkova has handsome bark and pleasing dark glossy green foliage that turns bronzy orange or burgundy in autumn. A medium to tall, deciduous tree from eastern Asia, it is often suggested and used as a disease-resistant substitute for the closely related American elm. The small oval leaves are toothed with a pointed tip. The smooth, dull grayish tan bark eventually exfoliates to reveal underlying rusty-orange patches. The inconspicuous green flowers emerge with the leaves and result in small green fruits.
For lushest growth, plant Japanese zelkova in full sun in any fertile moist well-drained soil. This tree has remarkable tolerance for heat and drought. It makes a good shade tree for residences, parks, campuses, streets, or formal allees.
An easily grown plant, it succeeds in almost any good soil, acid or alkaline, preferring a deep well-drained moist loam. Prefers a moderately sheltered position. Relatively shade tolerant. A fast growing tree. Dormant plants are very cold-tolerant, but they are sometimes damaged by late spring frosts when they are young. Plants are susceptible to Dutch Elm Disease, but the beetle that is the vector of this disease rarely feeds on Zelkova so infestation is rare. Plants in this genus are notably resistant to honey fungus.
Information source: www.Learn2Grow.com.
Genus - Zelkova
Species - Serrata
Common name - Japanese Zelkova
Pre-Treatment - Required
Hardiness zones - 4 - 8
Height - 40'-80' / 12 - 24 m
Spread - 40'-60' / 12 - 18 m
Plant type - Tree
Vegetation type - Deciduous
Exposure - Full sun
Growth rate - Fast
Soil PH - Acidic, Neutral
Soil type - Clay, loam, well drained
Water requirements - Average Water
Landscape uses - Feature Plant, Shade Trees, Street Trees
Bloom season - Late Spring
Leaf / Flower color - Dark Green / Green
1. Soak the Zelkova seeds in warm, not boiling, water for 24 to 48 hours.
2. Moisten peat moss or vermiculite. Place in a plastic bag and add the Zelkova seeds.
3. Seal the plastic bag and label with the seed name and date with a permanent marker. Place in the refrigerator for 60 days.
4. Open the bag and check the seeds every week. If any seeds are sprouting, plant immediately.
5. Sow the seeds in sterile potting mix, one per pot, and cover with 2 cm (1") of soil. Place in a warm, brightly lit location. Keep moist until the remaining seeds germinate.
6. Transplant the seedlings outdoors in early spring. (source: ehow.com)