A really good “herb” to have in your garden is mint. The only problem is that mint is a weed!
My definition of “weed” is something that grows where you don’t want it, and is really hard (nearly impossible) to get rid of. If you have any weeds in your garden, you’ll know exactly what I mean.
Anyway, if there’s one tip I can give you for planting mint is to plant it in a pot. Whether you want it in the ground or not, plant it in a pot that will keep the roots in check. And, make sure that you will be able to see if the roots are growing out of the pot, for example, over the top, or through any holes in the bottom of the pot.
I made the mistake of planting mint in my herb garden, and within a couple of months, the roots had come out the pot, and spread practically EVERYWHERE! I decided to pull the mint out of the ground, and I was surprised to see that this little plant had grown roots as thick as my thumb and about a meter long.
So, PLEASE be careful when planting mint. It is a great plant to have, especially if you want to add it to your food or your home-made ice tea.