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Gardening and Landscaping Stack Exchange

Questions tagged [walnut]

35 questions
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Diseased walnut?

I bought a house recently (Southern Indiana) and only just realized that there may be some walnut trees on the property. At least, something likes to drop these large seeds on my shed and make a very loud noise. They are triple layered, and the…
conman
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Walnut Sapling Stem Getting Black

I am worried about this walnut sapling. It was replanted last month and look healthy, hewever, I noticed the lower part of the stem got black. I am worried that the sapling might die. What is causing this black color? Is it rotten? Is there…
Badan
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What are the Chances to Get a Walnut Tree from Seed that Yields Similar Nuts as its Parent

I have read that most trees that are grown from seed turn up to be very different than the parent. For example, some sources claim that the chance to get good apples from an apple grown from seed is 1/25. However, I also read that self-fertile trees…
Badan
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Which walnut varieties are best for eating?

It looks like English walnut (Juglans regia) is the tree that produces the walnuts you'd get in the supermarket. Does black walnut (J. nigra) produce nuts that are worth eating? Are there varieties of either species (or perhaps other walnut species)…
bstpierre
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Can you plant white walnuts in summer?

Bought a house in Dayton, Ohio, and want to plant some white walnut trees. (Temperatures: I've seen it get down to like -5F, a few years ago, but looks like it rarely gets below 15F.) I've found a source of nuts that MIGHT be plantable (though I'm…
Erhannis
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Disease on walnut - light green convex lumps on leaves

There are convex light green lumps on the leaves of my family's black Walnut - only in one region of the tree. The reverse side of affected areas has like a fuzzy yellow crust. What is this and is it unhealthy for the tree? Is it a fungus? …
Void Star
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Is it harmful for birds to have a house hanging on a walnut tree?

There is a belief in my area that it is not healthy for humans to sleep under a walnut tree. Is this valid for birds too? Is it harmful for birds to live in a bird house hanging on a walnut tree?
VividD
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Walnut leaves in compost - yes or no?

I have several walnut trees in my yard, and this year I am going to make compost for the first time in my life, and would like to know whether I should include walnut leaves in my compost pile. There are contradictory opinions on this matter on the…
VividD
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How to harvest whole walnuts of a tall tree in one day?

This picture show a walnut harvest machine. But I think this machine is useful for walnut trees that are around 10 meters height. I don't know which kind of machine is appropriate for trees around 30 meters height. people do this using some kind of…
MySky
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Walnut Tree Danglies?

I have a medium-sized black walnut tree in my yard in north-east Ohio. Recently I noticed these strange things dangling from the bottom of the lower branches. Picture below. Any ideas as to what they might be? I do not believe they are webworms, as…
Dark Falcon
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Are walnut tree chips suitable as mulch?

I had to cut a large number of branches from a walnut (its crown started mixing with electric wires). If those branches are chopped (by a machine), can resulting peaces be used as mulch (given juglone content of any walnut)?
Aleksandar M
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Grafting black walnut onto English walnut

I have a healthy three year old English walnut. It is about 8 feet tall and 5 feet wide. It was purchased at one of the large home improvement stores (I don't remember which) so the tree itself may actually be grafted onto a black walnut…
iAndelin
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Why would a walnut tree lose all its leaves in ten minutes?

I watched a walnut tree lose all its leaves in about ten minutes one time some years ago and I was wondering if this is something that is normal and if not would there be a simple explanation for it. How could this happen?
Samantha
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How to harvest and process walnuts?

I came across a fallen walnut tree and harvested some. Vaguely remembering from my childhood that the husk is to be removed and the nut dried in the sun I proceeded only to realize I have no idea what am I doing. The husk doesn't separate cleanly so…
Vorac
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Young walnut is having trouble

I have planted this young walnut a some time ago. Forget the yellow leaves .. It got way too much water last days :/ I am more concerned about the tree-top which turned black. See on the picture, it's actually "open" in the middle. Should I cut…
tpapz
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