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To grow English walnuts, you need to start with the right variety, plant it in deep, well-drained soil, and give it plenty of space, sunlight, and patience.
English walnuts, also known as Persian walnuts, are prized for their thin shells and rich, buttery flavor.
When you grow English walnuts, you’re not just planting a tree; you’re investing in a long-term harvest that can last for decades.
In this post, we’ll walk you through how to grow English walnuts step by step, from choosing the right spot to caring for your tree as it matures.
Let’s dig in.
How to Grow English Walnuts: The Basics
Growing English walnuts successfully starts with understanding what these trees need.
English walnuts are not like black walnuts, which are tougher and more bitter.
If you want to grow English walnuts, you should know they are more sensitive to cold and soil conditions.
They thrive in temperate climates with mild winters and long, warm summers.
Here’s how to grow English walnuts the right way:
1. Choose the Right Climate
English walnuts grow best in USDA hardiness zones 5 through 9.
They need a location where temperatures don’t drop below -10°F (-23°C) for extended periods.
Late spring frosts can damage blossoms, so avoid low-lying areas where cold air settles.
If you live in a region with harsh winters, consider growing English walnuts in a protected spot or choosing a cold-hardy cultivar like ‘Carpathian’.
2. Pick the Perfect Spot
English walnuts need full sun, at least six to eight hours a day.
They also need deep, well-drained soil.
Waterlogged roots will kill your tree faster than almost anything else.
When you grow English walnuts, make sure the planting site is at least 30 to 40 feet away from other trees or buildings.
Their roots and canopy need room to spread.
3. Plant at the Right Time
The best time to plant English walnuts is in early spring or late fall, when the tree is dormant.
Dig a hole twice as wide as the root ball but no deeper than the root ball itself.
Set the tree so the graft union sits two to three inches above the soil line.
Backfill with native soil, water deeply, and add a layer of mulch to retain moisture.
How to Care for English Walnuts as They Grow
Once your English walnut tree is in the ground, the real work begins.
These trees need consistent care to grow English walnuts that are healthy and productive.
1. Watering Wisely
Young English walnuts need regular watering, especially during dry spells.
Give them about one inch of water per week, either from rain or irrigation.
As the tree matures, it becomes more drought-tolerant, but you’ll still get better nuts if you water during prolonged dry periods.
2. Fertilizing for Growth
English walnuts benefit from a balanced fertilizer in early spring.
Look for a formula like 10-10-10 and apply it according to package directions.
Avoid fertilizing after mid-summer, as this can encourage new growth that won’t harden off before winter.
If you want to grow English walnuts organically, compost and aged manure are excellent alternatives.
3. Pruning for Structure
Prune your English walnut tree in late winter while it’s still dormant.
Focus on removing dead, damaged, or crossing branches.
The goal is to create a strong central leader and well-spaced scaffold branches.
Good airflow reduces disease pressure and makes harvesting easier.
4. Managing Pests and Diseases
English walnuts can struggle with walnut blight, anthracnose, and pests like aphids and codling moths.
Plant resistant varieties when possible, and keep the area around the tree clean.
If you notice signs of disease, treat promptly with appropriate fungicides or insecticides.
Harvesting and Enjoying Your English Walnuts
It takes patience to grow English walnuts; most trees start producing nuts after five to seven years.
But once they do, you’ll have a generous harvest for years to come.
1. When to Harvest
Harvest English walnuts in late summer to early fall, when the outer husk starts to split.
You’ll know they’re ready when the nuts fall to the ground or can be shaken loose from the tree.
2. How to Dry and Store
After harvesting, remove the husks and rinse the nuts thoroughly.
Spread them out in a single layer in a warm, dry, well-ventilated area for two to three weeks.
Once fully dry, store them in a cool, dark place in airtight containers.
Properly dried English walnuts can last up to a year or more.
3. Using Your Harvest
English walnuts are incredibly versatile.
You can eat them fresh, toast them for salads, bake them into breads and desserts, or press them for walnut oil.
Growing English walnuts means you’ll always have a supply of this delicious, nutritious nut on hand.
So, How to Grow English Walnuts?
To grow English walnuts, start with the right climate and soil, plant at the correct depth, and provide consistent water, fertilizer, and pruning.
Choose a variety suited to your region, give the tree plenty of space, and be patient; the harvest is worth the wait.
Whether you’re planting one tree or a small orchard, knowing how to grow English walnuts can bring you decades of satisfaction and plenty of delicious nuts.
Happy planting.