Answer: Marigolds attract beneficial insects and their odor can repel other crittiers. Some gardeners plant marigolds in their vegetable gardens to repel harmful insects. While the marigolds are an attractive addition to the garden, research studies have concluded they aren't effective in reducing insect damage on vegetable crops. So, if you love marigolds, go ahead and plant them, but don't expect their presence to keep your garden critter free.
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