The chemical inhibition of one plant by another due to the release into the environment of substances acting as germination or growth inhibitors.

Garden writer and blogger, author of 65 gardening books, lecturer and communicator, the Laidback Gardener, Larry Hodgson, passed away in October 2022. Known for his great generosity, his thoroughness and his sense of humor, he reached several generations of amateur and professional gardeners over his 40-year career. Thanks to his son, Mathieu Hodgson, and a team of contributors, will continue its mission of demystifying gardening and making it more accessible to all.

11 comments on “Allelopathy

  1. Last year I planted marigold next to other garden flowers and i noticed that some of them didn’t bloom like in previous year or didn’t look as healthy as I knew its were. On the other hand the beautiful marigold grew in their glory and beauty. So I was wondering if it is something to do with these gorgeous, which I’m gonna experiment this year and move the marigolds elsewhere to see if my lilies will come alive this year

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