When I took my permaculture design course in 2010, there were a few permaculture design elements that seemed easy to incorporated into most gardens. Herb spirals are one of them.
Our backyard is designed with a lot of big looping curves, creating wonderful nooks and crannies for seating areas, play areas, veggie gardens, and the perfect spot for an herb spiral.
What is an herb spiral? Herb spirals maximize garden space by coiling up a linear garden space into a mounded spiral. Built with some elevation, herb spirals offer various micro-climates. Each side of the spiral receives a different amount of sunlight and the soil moisture fluctuates as it moves down and around the spiral.