You are going to have a very difficult time making your own herbs in your outdoor garden if you live in a cold area. Not all states have the kind of weather that would allow that. The Urban Cultivator solves that problem though. It lets you grow fresh hydroponic herbs all year long. This is roughly the size of a dishwasher but maintains the right temperature, humidity, and moisture for your plants. It is offered in built-in and stand alone configurations.
The machine is not the cheapest around but it could save you money in the long run. Nice product to have if you can afford it.