Japanese Zelkova Tree Seeds

Japanese Zelkova (Zelkova serrata) is a graceful, fast-growing deciduous shade tree prized for its elegant vase-shaped form, attractive serrated foliage, and brilliant fall color ranging from golden yellow to rich orange and reddish-bronze. Native to Japan, Korea, and Taiwan, this adaptable ornamental tree is widely planted as a street tree, specimen tree, and shade tree because of its attractive appearance, strong branching structure, and excellent tolerance of urban environments. Mature trees develop beautiful exfoliating bark that reveals shades of gray, orange, and brown, providing year-round landscape interest.

Botanical Information

• Botanical Name: Zelkova serrata
• Common Name: Japanese Zelkova
• Plant Type: Deciduous shade tree
• Family: Ulmaceae
• Germination Rate: 60–80%
• Native Range: Japan, Korea, and Taiwan
• Mature Height: 50–80 feet
• Mature Spread: 40–60 feet
• Growth Rate: Moderate to fast
• USDA Hardiness Zones: 5–8

Germination Instructions

We now recommend a 30-day cold moist stratification before sowing to improve germination speed, uniformity, and overall success.

1. Place the seeds in a moist mixture of peat moss, vermiculite, or sand and refrigerate for approximately 30 days.
2. After stratification, sow seeds about 1/8 inch deep in a quality seed-starting mix.
3. Keep the growing medium evenly moist but not waterlogged.
4. Maintain temperatures between 65–75°F during germination.
5. A humidity dome may be used to help retain moisture until seedlings emerge.
6. Once germinated, provide bright light and good air circulation for healthy seedling growth.

Growing Information

• Prefers full sun to partial shade.
• Thrives in fertile, moist, well-drained soils.
• Adapts well to clay, loam, and sandy soils.
• Tolerates drought once established.
• Highly tolerant of urban pollution, heat, and compacted soils.
• Forms a broad, vase-shaped canopy that provides excellent shade.
• Attractive exfoliating bark reveals shades of gray, orange, and brown with age.
• Fall foliage turns vibrant shades of yellow, orange, bronze, and red.
• Excellent choice for streets, parks, large lawns, and residential landscapes.
• Resistant to many pests and diseases, making it an excellent alternative to American Elm.
• Requires minimal maintenance once established and has an exceptionally long lifespan.

Seed Quantities Available

• 1 oz. - 1,875 Seeds
• 1/4 lb. - 7,500 Seeds
• 1 lb. - 30,000 Seeds