Ornatec InternationalSpecies reference sheet · ornatecinternational.com
Juglans nigra
Black Walnut
The Juglans nigra, or Black Walnut, is a majestic deciduous tree renowned for its valuable timber, edible nuts, and striking presence in large landscapes. Growing up to 30 meters, it features a straight trunk, a broad, rounded crown, and pinnate, dark green leaves that turn yellow in autumn. Its round, green husks encase rich, flavorful nuts that ripen in late summer to early autumn.
Native to North America, the Black Walnut thrives in fertile soils and open spaces, making it an excellent choice for shade, timber production, or as a legacy tree.
Specifications
- Height20–30 meters
- Width15–20 meters
- Native toNorth America
- FoliagePinnate, dark green leaves; deciduous
- Growth rateModerate to fast
Conditions
- SoilPrefers deep, well-drained, fertile soil; tolerates loamy and sandy soils
- LightFull sun
- WaterModerate; drought-tolerant once established
- ClimateThrives in temperate regions
Additional Features
- NutsRound, green husks encasing flavorful, edible nuts, ripening in late summer to autumn
- Timber ValueHigh-quality, dark hardwood used in fine furniture and cabinetry
- UsesIdeal for shade trees, timber production, or as a statement tree in large spaces
- SpacingPlant 15–20 meters apart for individual growth or timber groves
- Low MaintenanceRequires little pruning; clean up fallen nuts for ease of maintenance
- Pest ResistanceGenerally pest-resistant; monitor for common nut tree pests
- Environmental BenefitsProvides habitat for wildlife and stabilizes soil
- CautionProduces juglone, a natural compound that may inhibit the growth of some plants beneath its canopy
The Black Walnut is a grand and productive tree, offering shade, nuts, and timber while standing as a symbol of longevity and natural beauty in large landscapes.
Availability by project review. Sizes, quantities, origin and export readiness are confirmed after your plant schedule is reviewed against destination, timing and quarantine requirements. MEWA certified for supply into Saudi Arabia; Australian Export Registered Establishment.
Enquiries: sales@ornatecinternational.com
310 Donkin Rd, Utchee Creek QLD 4871, Australia
Prepared 25 July 2026