Crop Rotation Group
Miscellaneous
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Soil
Fertile, well-drained soil.
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Position
Full sun or partial shade.
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Frost tolerant
Yes, but flowers can be damaged by late frosts.
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Feeding
Mulch with well-rotted organic matter in spring.
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Companions
Can restrict growth in other plants nearby, because many plants (including tomatoes) are sensitive to juglone, a substance present in walnut roots, leaves and wood. Walnuts should be grown in an orchard of their own, far from the vegetable garden.
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Spacing
Single Plants: 20.00m (65' 7") each way (minimum)
Rows: 20.00m (65' 7") with 20.00m (65' 7") row gap (minimum)
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Sow and Plant
Prepare a large hole by breaking up the soil and adding plenty of well-rotted organic matter. A wide hole is better than a very deep one. Mulch after planting, and encircle the trunk with a wire cage or protective pipe to protect the young tree from animal and insect pests.
Our Garden Planning Tool can produce a personalised calendar of when to sow, plant and harvest for your area.
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Notes
Healthy walnut trees will bear for many decades.
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Harvesting
Knock down nuts when ripe, remove the peel and dry. If pickling, harvest while it is still possible to pierce the nuts with a skewer.
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Troubleshooting
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