Answer: Mints won't cross-pollinate the way squash and corn do, so planting them side by side is perfectly acceptable. Mint plants can become weedy and invasive, spreading by roots and by seeds. You can help keep them in bounds by planting them in containers and burying the containers in the soil. You can also help control their spreading by removing the flowers before they set seeds. Mints are wonderful additions to the garden, as long as you keep a watchful eye on them.
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