How to Care for an English Walnut Tree

Written by marlene affeld
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The English walnut tree (Juglans regia Carpathian), also known as the Persian walnut, is a favoured nut-bearing landscape tree. Hardy in United States Zones 5 to 9, English walnut trees offer a bountiful harvest for humans and wildlife as well as summer shade and winter ornamental interest. Fast-growing, drought tolerant, self-pollinating and disease resistant, English walnut trees are easy to care for assets in both cottage garden and urban landscapes. English walnut trees will reach 50 to 60 feet tall at maturity.

Skill level:
Moderately Easy

Things you need

  • Pruning shears
  • Garden gloves
  • Organic compost
  • Leaf mulch
  • Peat moss

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  1. 1

    Test your soil. Take a soil sample to your local landscape centre or state extension service to have the soil evaluated for nutrient content.

  2. 2

    Supplement the soil. Soil lacking in iron will benefit from an application of bone meal. Sprinkle bone meal around the base of the tree, following package instructions.

  3. 3

    Cover the area around the base of the tree with a 2 to 3-inch layer of a mixture of equal parts of organic compost and peat moss to conserve moisture and help control weeds.

  4. 4

    Top dress the tree base with a 1 to 2-inch layer of pine bark or decorative rock.

  5. 5

    Water weekly. Although relatively drought tolerant, walnut trees require moisture and will benefit from weekly soaking of the tree roots during dry periods.

  6. 6

    Inspect your tree. Prune as required, removing any damaged or broken branches.

Tips and warnings

  • English walnut trees produce nuts faster than almost any other walnut tree.
  • Walnut trees are self-pollinating; however, plant two trees to ensure pollination.

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