Juglans
( JOO - glanz )
Juglans Species and Varietals
The best growing zones for Walnut trees vary depending on the species; for more information, see the descriptions below. To find your zone, click here: Zone Map.
Juglans californica californica (Southern California Black Walnut) This species grows well in zones 18-24, and is native to Southern California. Reaches 15-30 feet tall and just as wide, and tend to be multi-trunked. Nuts produced are rich in flavor. Resistant to Oak Root Fungus. No irrigation needed. |
Juglans nigra (Black Walnut) This species of Walnut does well in zones 1-9 and 14-21, and is native to eastern North America. They can reach up to 100 feet tall and 70 feet wide, with black-brown furrowed trunks. This is a large, hardy shade tree with a long dormant season. These trees need regular waterings, and produce nuts that are rich in flavor. |
Juglans regla (English Walnut)
This species is grown both as an ornamental landscaping tree and in orchards as a nut-producing crop tree. They are best in zones 4-9 and 14-23. They are hardy down to -5 degrees Fahrenheit, and quickly reach 60 feet tall and just as wide. Trunk is smooth and gray, and leaves are green. Nuts are ready in fall; a single tree can produce up to 150 pounds of nuts. Varieties that would do well in the Bay Area and surrounding zones include 'Carmelo', 'Chandler', 'Cooke's Giant Sweet', 'Franquette', 'Hartley', 'Payne', 'Pedro', and 'Serr'. |
Caring for and pruning juglans Trees
Propagation
Problems and Pests
Gallery
Videos
A video all about growing camellias successfully
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Propagating camellias
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Resources
The New Sunset Western Garden Book: The Ultimate Gardening Guide (2012) - Page 385, Juglans; Page 653, Walnut
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