blackwalnut by pcgn

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									                                       Growing Vegetables &
                                        Black Walnut Trees


                           How do black walnut trees affect vegetable gardens?
  -                         - They contain a substance called Juglone which can be
      quite
                            toxic and inhibit the growth of many vegetables.
  -                         - Affected plants will often yellow, wilt, and eventually die.

                           What vegetables are most affected?
                            - Tomatoes, eggplants, peppers, potatoes, asparagus,
                           cabbage & rhubarb will not grow well under a black walnut.


Which vegetables/ flowers can grow under black walnut trees?
  - Carrots, squash, zucchini, melons, beans, corn, onions.
  - Also flowers such as sunflowers,
     wild ginger, daylilies, bee balm &
     zinnia will also thrive


What else be done?

  - By building raised beds, and lining the base with landscape fabric, you can help
    prevent the soil from becoming toxic. Soil should be at least one foot deep.
  - Using lots of compost will help balance the PH of the soil, and feed your plants!
  - Tilling regularly will help break down the juglone in the soil
  - Ensure that dropped leaves, buds, and fruit are removed from the garden.
  - Do not add leaves of other black walnut plant material to your compost.
  - If possible do not plant your garden within a 50ft radius of the black walnut tree.


                                 For additional information
                         Peterborough Community Garden Network
                       http://ptbocommgardennetwork.blogspot.com
                                   pcgn@greenup.on.ca
                                   705-745-3238 ex. 204

								
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