Need some ideas on where or how to plant your perennial herbs? Consider building raised beds. Many herbs are considered invasive and will spread out of your garden and into your yard. Raised beds are an excellent way to contain these plants. Read more about raised bed options here: 5 Ways To Build Raised Garden Beds and 1 Way Not To!
Maybe you just want to build something to put close to the back door to grab an herb whenever you need it for your next meal. Here is a neat idea for turning a pallet into a small herb garden.
Of course you can always just use some pots to grow your herbs and to be quite honest, if you only use a few kinds and want to do it in the simplest way then this is probably your best option.