Nematodes, marigolds, and crop rotation

Marigolds as a cover crop: they are not only useful, but also beautiful and attract butterflies and bees.This summer, for several reasons, I skipped most of the summer crops and planted a cover crop of marigolds. I'd also planted a lot of marigolds around the tomatoes earlier in the season--about 3...

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Old gardeners' tales

Old gardeners' tales are rampant, even these days. Companion planting advice as shown in this graphic is freely passed along as gospel of the garden. But most of the companion planting pairings (compatible or incompatible) have not been verified with scientific methods.  Nevertheless, books have...

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