UPDATE: Well, it's been a while since I saw the seedlings. Every time I water them, no matter how I do it, the soil gets rearranged and the plants get buried. They never got that big. I have one of those gentle mister bottles and even that was too much. The ungerminated seeds are so tiny that it's impossible to be sure they're still in there. So, what I've done is use these pots to propagate succulents instead. They are a great size for propagating sedums in particular! I hope you have better luck than I do with the peppermint, but I still think the main attractions here are the tiny pots themselves...This is such a cute little growing kit! I got it for the tiny terracotta pots which I eventually plan to use in crafting. But, I will grow the peppermint first. Like most mint relatives, this plant can spread pretty aggressively, reseeds itself and is cold tolerant. If you raise the plants, then transfer them to your yard, you'll have a patch of peppermint before long. This is a nice kit too because you get 6, which is enough to gift a few people and still grow a few yourself. Growing this plant is very straightforward - it'll grow like a weed. This is a lovely gift and a good way to teach children responsibility. It's a plant that won't take too much time or effort to grow, and they can eat the leaves or mash them up and make tea out of them. I recommend this kit!
