What can I plant near a black walnut tree?

Trees that grow near black walnut

  • Most maples except silver maple (Acer spp)
  • Eastern Red Cedar (Juniperus virginiana)
  • Serviceberry, Saskatoon (Amelanchier)
  • River Birch (Betula nigra)
  • Black Cherry (Prunus serotina)
  • Pear (Pyrus spp.)
  • Oak species (Quercus spp)
  • Dogwood (Cornus alternifolia)

Moreover, what can you not plant near a black walnut tree?

Plants Sensitive to Juglone

  • Asparagus.
  • Cabbage.
  • Eggplant.
  • Peppers.
  • Potatoes.
  • Rhubarb.
  • Tomatoes.

Also Know, do black walnut trees kill other plants? In most cases, the damage caused by black walnuts to other plants is a combination of the presence of juglone in the soil, and the competition for light, water and nutrients. However, juglone can cause severe damage and even kill solanaceous crops (tomatoes, potatoes, peppers and eggplant).

Also to know is, what grows well with black walnut trees?

30 Plants That Will Grow near Black Walnut Trees

  • Most maples except silver maple (Acer spp)
  • Eastern Red Cedar (Juniperus virginiana)
  • Serviceberry, Saskatoon (Amelanchier)
  • River Birch (Betula nigra)
  • Black Cherry (Prunus serotina)
  • Pear (Pyrus spp.)
  • Oak species (Quercus spp)
  • Dogwood (Cornus alternifolia)

Will hostas grow under black walnut trees?

Surprisingly, many huechera, astilbe and hosta varieties can all be planted under black walnuts. Many native plants including mayapples, Jacobs ladder, and wild bergamot are also resistant. From personal experience, the native understory shrub spice bush, does very well under black walnut trees.

14 Related Question Answers Found

Is a black walnut tree worth money?

Black walnut logs bring premium prices, and have since the 1700s, with single trees bringing up to $20,000. Bruce Thompson, author of “Black Walnut For Profit,” estimates a mature stand of black walnut trees can bring about $100,000 per acre in timber value alone.

What is the life expectancy of a black walnut tree?

250 years

Are black walnuts poisonous to dogs?

Although the black walnut is not harmful to cats, dogs and horses can suffer from black walnut toxicity. Dogs are not harmed by the plant itself, but can experience tremors and seizures after eating fallen nuts that have started to mold.

Is Black Walnut toxic to humans?

The roots of the black walnut tree produce an organic compound called juglone. Allelopathic effects are not usually observed until the tree is at least seven years old. Juglone does not pose any threat of toxicity to humans, but gardeners should be aware of its effects and plan accordingly.

What does Black Walnut kill?

Black walnut extracts can be taken internally for ailments such as gout, rheumatism, glandular disturbances, worms, and parasites. The most common medicinal use of black walnut is to kill parasites. Black Walnut oxygenates the blood to kill parasites. It is used to help balance sugar levels.

Will azaleas grow under black walnut trees?

Black walnut trees secrete a biochemical substance known as Juglone. Avoid planting the following near or under the canopy of black walnut trees: Apples, white birch, mountain laurels, blackberries, blueberries, tomato plants, azaleas, chrysanthemum, crocus, hydrangeas, lilacs and rhododendron.

Do black walnut trees kill grass?

Black walnut trees produce a toxic chemical known as juglone that can stunt the growth of your grass. You can remove any nuts or leaves that fall from the tree to limit damage to your lawn from juglone and replant the affected areas of your lawn with a juglone-resistant species of grass, such as tall fescue.

How far is safe enough from black walnut trees to plant tomatoes?

All parts of the black walnut contain juglone. This is toxic to many plants including tomatoes. Many gardeners, like you, struggle with growing gardens near theirs or their neighbor’s black walnut tree. Try growing your tomatoes at least 50 feet from the tree where the juglone concentration is greatest.

How tall do black walnut trees grow?

Black walnut usually matures in about 150 years. An average site will produce mature black walnut trees which are 70 to 80 feet in height and attain diameters of 2 to 4 feet when grown in a forest stand. On the best sites this tree may reach up to 150 feet tall and over 8 feet in diameter.

How do you kill a black walnut tree?

Spray the trunk over the girdling marks with a product containing glyphosate. Glyphosate is a systemic herbicide. When you use glyphosate, the walnut will pull the herbicide into the rest of its system, which will kill the roots of the walnut tree.

What can you use black walnuts for?

Black walnut is a tree. People use the outer covering of the nut (the hull) to make medicine. Black walnut is commonly used by mouth to treat parasitic worm infections and certain other infections including diphtheria and syphilis. It is also used for leukemia.

Are English walnut leaves toxic?

When exposed to air or soil compounds, hydrojuglone is oxidized into the allelochemical juglone, which is highly toxic. Several related trees such as English walnut, hickories and pecan also produce juglone, but in smaller amounts compared to black walnut.

Will daffodils grow under walnut trees?

Gardeners with black walnut trees need to select plants that can tolerate juglone. The good news is that the varieties you mention, snowdrops, Spanish bluebells and winter aconite, are all listed as juglone resistant. Other options include alliums, crocus, daffodils, grape hyacinths, hyacinths, scilla and chinodoxa.

What plants are affected by juglone?

Particularly sensitive to juglone are vegetables such as tomatoes, potatoes, eggplants and peppers, and ornamentals such as lilacs, peonies, rhododendrons and azaleas. The symptoms in plants sensitive to juglone range from stunting, yellowing, to partial or total wilting, to complete death.

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