Today, a word that is one my favorite gardening terms:
Allelopathy: is the reason you cannot grow some plants under walnut trees. Allelopathic plants are those that secrete a chemical compound that inhibits the growth of another plant. In walnuts, this substance is juglone. However, some plants are allelopathy-resistant or unaffected. It is recognized that these plants can grow under a walnut just fine: blackberries, grapes, mints, forsythia, ferns, marigolds and most native hardwoods! Eucalyptus, alianthus ("tree of heaven"), garlic mustard, rice, fragrant sumac, and hackberry are other plants with allelopathic properties.
* Lagniappe: Cajun for "a little something extra."
**My favorite gardening terms
Happy gardening!
Central Virginia Organic Gardener
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