Ambassador walnut trees are known for their cold hardiness and consistent production of medium to large nuts with smooth, easy-to-crack shells. The nuts have a mild, buttery flavor and are perfect for fresh eating, baking, and storing. Thriving in full sun and well-draining soil, this vigorous variety is ideal for cooler climates and requires minimal care once established. Ambassador walnut trees provide reliable harvests and ornamental value with their tall, stately growth. Whether grown for personal use or larger-scale production, Ambassador is a dependable and rewarding choice.
Standard on Citation rootstock.
- Zones: 4-8
- Chill hours: 600
- Harvest: September 20 – October 5
- Looks: Plump, light-colored kernels with well-sealed 11⁄4” nuts.
- Personality: Excellent flavor.
- Facts of note: Cold hardy Carpathian hybrid for severe climates. Young trees set a heavy crop. The variety was developed in Idaho.
- Pollination: Self-pollinated. Ambassador® sets a good crop even without a second variety to pollenate it.
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For more information about different types of rootstocks and how they influence tree size and growth, see our Tree Rootstock Characteristics Chart.
