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Top Questions About Walnut Trees

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Questions About Walnut Trees

  • Answered by
    Nikki on
    October 18, 2012
    Certified Expert
    A.

    You don't have to till the soil, but it couldn't hurt if you have a large area. This article will help: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/how-to-till-a-garden-tilling-your-soil.htm

    Most trees do not need supplemental fertilizer but in general, if you are going to fertilize a tree, a fertilizer with a high N, a low or no P and a moderate K is best for non-fruiting trees (such as 30-0-10 or 32-3-10). If you are looking to get nuts from the tree, then you would use a fertilizer that has a moderate P (such as 30-10-10).

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  • Answered by
    AnnsGreeneHaus on
    April 12, 2013
    A.

    If the husk or shells are round, it's probably a black walnut. If a tree is "limbed up" high enough, grass will grow underneath because light can get under the canopy to support grass growth. The only precise way of determining a tree's age is take a trunk core sample and count the rings. We had a 65 year old black walnut cut and the diameter was 3 feet.

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  • Answered by
    Nikki on
    February 10, 2014
    Certified Expert
    A.

    Yes, this tree will grow in your area. It is tolerant down to a zone 5 and you are in zone 7, so it will be fine.

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  • Answered by
    Nikki on
    March 15, 2014
    Certified Expert
    A.

    Most trees do not need supplemental fertilizer, but it sounds like you have some concerns about your tree. Are you seeing health problems with the tree? If so, let us know the symptoms and we can help identify what is wrong with the tree. In general, if you are going to fertilize a tree, a fertilizer with a high N, a low or no P and a moderate K is best for non-fruiting trees (such as 30-0-10 or 32-3-10). If you are looking to get nuts from the tree, then you would use a fertilizer that has a moderate P (such as 30-10-10).

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  • Answered by
    Nikki on
    March 29, 2014
    Certified Expert
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  • Answered by
    theficuswrangler on
    May 2, 2014
    A.

    This sounds like one of several possible diseases that affect walnuts in the Pacific Northwest, especially after a difficult winter. Please take samples of the affected tree to a local Extension Service office for analysis and possible treatment. This link will help you locate one: https://www.gardeningknowhow.com/extension-search/

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  • Answered by
    shelley on
    April 5, 2015
    Certified Expert
    A.

    Has this been happening year after year?

    Does the tree otherwise look healthy? Are there deep cracks in the bark from which sap is oozing? Does the clear odorless liquid stain or discolor the tree bark? If there were cracks in the bark that oozed sap and if the bark was stained reddish or dark brown it could be a deep bark canker that affects walnut trees.

    I think we can rule out slime flux because slime flux is usually foul smelling and not clear.

    My gut feeling, however, is that your walnut tree is simply "crying" due to positive root pressure caused by the onset of warmer weather. The non-sticky, colorless and odorless liquid is actually sap, which is comprised mainly of water. Here is an excellent article that will explain what is happening in great detail:
    http://articles.dailypress.com/2006-03-15/news/0603150113_1_faucet-birches-warm-weather

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