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- Q.I Have Recently Moved A Black Walnut Tree That Was Very Difficult To Grow Anything Under And The Grass Seems To Be Having A Hard T - The grass under the tree does not seem to grow and will not fill in. It seems as if the ...
- Q.Gathering Black Walnuts For Starting Seedlings - When do you gather the nuts from the tree to start seedlings
- Q.Can You Leave The Husk On A Black Walnut For Planting? - Hi, I was wondering if it is absolutely necessary to remove the husks from black walnuts before planting them. Does ...
- Q.Walnut Tree – Worms - I live in South Africa, and moved into a house with a walnut tree. Year 1, the walnut tree produced ...
- Q.Gardening Under A Black Walnut Tree - I recently moved into an apartment that has a garden available for us. The area is minimally 24x24 ft. I've ...
- Q.Is A Black Walnut Tree (stump, Roots) Toxic To Garlic? - Have planted garlic adjacent to a black walnut stump for several years. It has always come in perfectly. This year ...
- Q.Sticky Film From Black Walnut Tree - We have a large black walnut tree in the middle of our backyard. This is our third year in this ...
Asked by
Teslasupernova on
May 18, 2020
83401 Idaho falls idahoQ.I Have Recently Moved A Black Walnut Tree That Was Very Difficult To Grow Anything Under And The Grass Seems To Be Having A Hard T
The grass under the tree does not seem to grow and will not fill in. It seems as if the tree has caused permanent damage to the soil?
Answered by
BushDoctor on
May 18, 2020
Certified ExpertA.Not permanent, but long term. This article will help:
https://www.gardeningknowhow.com/garden-how-to/info/allelopathic-plants.htm
Here is an article to help you plant in the area until it has been remediated:
https://www.gardeningknowhow.com/edible/nut-trees/black-walnut/black-walnut-compatible-plants.htm
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- Asked by
Anonymous on
July 9, 2020Q.Gathering Black Walnuts for starting seedlings
When do you gather the nuts from the tree to start seedlings
- Answered by
GKH_Susan on
July 10, 2020
Certified ExpertA.You will do this when they drop from the tree in the fall. After planting, they won't germinate till spring. As long as the seed does not feel empty when you remove the husk, it should be viable.
https://www.gardeningknowhow.com/edible/nut-trees/black-walnut/planting-black-walnut-trees.htm
Was this answer useful?00 - Asked by
IanK13 on
November 3, 2020
37387Q.Can You Leave The Husk On A Black Walnut For Planting?
Hi, I was wondering if it is absolutely necessary to remove the husks from black walnuts before planting them. Does this happen in the wild? Also, I wanted to start them in pots vs. the ground. Any tips on this? Are there benefits to planting the large walnuts vs. the small? I've collected a few hundred on the farm property I just purchased. Thank you.
- Answered by
GKH_Susan on
November 4, 2020
Certified ExpertA.All but one source I read said to remove the husks then soak the nuts in water. Discard the "floaters." They need a cold period so you'll need to chill your seeds before planting in pots. If planting in the ground you could do it right away. Since you don't want to hull the nuts, here is the extension publication that said you don't need to:
https://www.ksre.k-state.edu/historicpublications/pubs/Sc013.pdf
Every couple of years the trees produce large nuts. When planting, plant them 2 to 3 inches deep. If planting several in a container, place them as far apart as possible. They will form a tap root quickly, so you won't want to keep them in a pot for too long.
Was this answer useful?00 - Asked by
Anonymous on
June 21, 2022Q.Walnut Tree – Worms
I live in South Africa, and moved into a house with a walnut tree. Year 1, the walnut tree produced walnuts. As this was my first year with the tree, I didnt pick too many nuts, and the nuts I did pick I gave away - so didnt take note of the quality nut produced. Year 2, I was surprised the tree produced nuts again, as I had read it would not do so every year. The first haul I picked just under 300 nuts. When opening the nuts, some of them had worms in them. Generally 1 worm in the nut. Some of the worms were bright red. Some were white. What kind of worms are they? What can I do for the tree so that next year the nuts are worm free?
- Answered by
GKH_Susan on
June 27, 2022
Certified ExpertA.These articles should help:
https://www.gardeningknowhow.com/edible/nut-trees/walnut/walnut-tree-harvesting.htm
https://www2.ipm.ucanr.edu/agriculture/walnut/navel-orangeworm/
http://www.uky.edu/Ag/Entomology/treepestguide/walnut.html
https://extension.entm.purdue.edu/publications/E-33.pdf
http://ipm.ucanr.edu/PMG/PESTNOTES/pn7430.htmlWas this answer useful?00 - Asked by
Anonymous on
October 20, 2023Q.Gardening Under A Black Walnut Tree
I recently moved into an apartment that has a garden available for us. The area is minimally 24x24 ft. I've been taking out the overgrowth and the soil seems good, currently working on creating a compost bin. The only thing that worries me is the the plot is right under a giant black walnut tree. We can't cut it down or move the garden area. I guess I'm asking for what types of edible plants can I grow and how do I combat the falling nuts so they don't damage any plants? Any other advice is welcomed as this is my first official in ground garden (before was just in containers). Thank you in advance.
- Answered by
GKH_Susan on
October 23, 2023
Certified ExpertA.ou might consider raised beds with fresh soil and then you wouldn't have to worry about the juglone that is produced by the black walnut tree. However, you would need a barrier on the bottom so the roots don't go into the ground.
Also, the shade under the tree might be too much for vegetables, which need full sun. These articles should help:
https://www.gardeningknowhow.com/edible/nut-trees/black-walnut/black-walnut-compatible-plants.htm
https://www.canr.msu.edu/news/growing_vegetable_gardens_near_black_walnut_trees
https://www.gardeningknowhow.com/edible/vegetables/vgen/shade-vegetables.htm
https://www.gardeningknowhow.com/edible/vegetables/vgen/raised-vegetable-gardens.htm
When the nuts fall in autumn, you can cover the plants, if possible, with screening to keep the nuts out of the garden. Leaves also need to be removed.
Was this answer useful?00 - Asked by
Anonymous on
June 20, 2024Q.Is A Black Walnut Tree (stump, Roots) Toxic To Garlic?
Have planted garlic adjacent to a black walnut stump for several years. It has always come in perfectly. This year nothing. We did have an open December (NO SNOW COVER) and then some severe cold. Was it the walnut leaching into the soil or lack of mulch protecting my garlic?
- Answered by
GKH_Susan on
June 20, 2024
Certified ExpertA.Garlic is supposed to be tolerant of juglone in black walnut trees, so it must be something else. Perhaps the severe cold without protection did the garlic in. These articles should help:
https://www.canr.msu.edu/news/growing_vegetable_gardens_near_black_walnut_trees
https://www.gardeningknowhow.com/edible/herbs/garlic/growing-garlic.htm
Your particular type of garlic may be here:
Was this answer useful?00 - Asked by
Anonymous on
July 4, 2024Q.Sticky Film From Black Walnut Tree
We have a large black walnut tree in the middle of our backyard. This is our third year in this home. This is the first year that the tree is producing a sticky film. The film is all over everything on our deck and everything in our backyard. We can see the sticky film on the leaves of the tree. We have to wash everything down daily. The sticky film has killed all of the plants and flowers that were in pots on our deck and the hostas that were around the base of the tree. It seems to have killed a very large area of grass in our yard also. We had a lot of snow this past winter. We have also had some very hot and humid weather this spring and into our summer. We are wondering what is causing this to happen this year and is there anything we can do about it? We have young grandchildren who play in the backyard. The kids also bring their dogs when they visit. We are also wondering if the sticky film can make the children or dogs sick?
- Answered by
GKH_Susan on
July 4, 2024
Certified ExpertA.The sticky film is probably honeydew, which is produced by insects such as aphids and scale. Take a good look at the underside of leaves and stems for these creatures. It will take some persistence to get rid of it, if it is all over the whole tree. You may need to have a professional spray the tree for you. Here is more:
https://www.entm.purdue.edu/forest/pdf/16.pdf
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-aphids-and-ants.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/control-plant-scale.htm
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