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One of my favorite flowers is Victoria Blue Salvia, and I've been interplanting it in my vegetable rows, potager-style, along with other flowers like marigolds and zinnias. Last year I noticed that a couple of very sturdy salvia plants that had overwintered in the row that I was using for melons seemed to inhibit their growth. The plants on either side of the salvia didn't do much of anything at all. This year I had some big salvia plants in with my peppers and eggplants and those didn't do well either. I don't know whether it was just a bad year, or whether salvia possibly produces some chemical or plant hormone that negatively impacts some or all other plants. Ideas?
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