06-26-2015, 11:28 AM
While I've never treated for potted plants, you may want to consider using the poison bait Siesta. I know you said "Some of the plants are consumables, so no poisons" however you could put a quarter tsp of Siesta (which is 99.9% inert ingredients) next to the potted plant you wanted to treat and let the ants suck the poison out of the granules and do the killing for you. The amount of poison the ants track into your potted plant has got to be miniscule like measured in the parts per trillions. You were probably subjected to more toxins during your first diaper change than could ever be administered in this manner.