• Immerse the pots in water for about 15 minutes. Remove them from the water and place them in a different location for 3 or days. They’ll be fine. Just make sure the water can drain completely away.
  • If the plants are small enough, immersing them for 24 hours may do the trick. Not a guarantee, but most ants won't live through it. Look it up and make sure your herbs can handle that long without oxygen to the roots, but I think you'll be fine. I've also heard cayenne or cinnamon kills them. As much as I hate links to Y!A, this one has lots of answers:

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