If you planted mint the year before, and let it grow like crazy then added in the duck foot it would be alright I think. I added silk flowers as it grew. ( paranoid ? ) all but one of the ducks gave a citrus smell. One of them gave a cat piss :0/ that big plant gave 10 oz of solid buds and another 4 oz of little buds I couldn't be bothered to trim.

It looks a lot like nettles ( a stinging weed that grows around here)

As you think of new questions let me know I will do my best to answer them.