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Q&A – Will black walnut juglone dissipate after a year of composting?

Question:
Will black walnut juglone dissipate after a year of composting?

Answer:
Yes it will. Gardener Peter Richards explains that juglone is most concentrated in the roots, there is only a little in the leaves. After about 6 months of composting, the juglone is broken down and the compost can be used with other plants.

Related Videos:
Starting a Compost Pile
Can I compost my treated lawn?

Related Resources:
Landscaping and Gardening Around Walnuts and Other Juglone Producing Plants
Black Walnut Toxicity
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  • Home
  • Watch
    • TV Schedule
    • Full Episodes Online
    • How-to and Informational
    • Questions and Answers
    • This Week in the Garden
    • Garden Notes
  • Garden Topic Collections
    • Apple Trees: How-to and Information
    • Peach Trees: How-to and Information
    • Tomatoes: How-to and Information
    • Square Foot Garden Blog
  • Resources
    • Soil Testing
    • Extension Publications
    • Gardening Resources
    • Blogs
    • Organic Gardening
    • Articles
    • Privacy
  • Guests
  • Contact Us
    • Ask a Gardening Gardening Question
  • Search