A keyhole garden is a permaculture garden design meant to increase the amount of space available for plants by decreasing the area reserved for pathways. It gives a beautiful twist to traditional raised-bed gardens.
These productive gardens are ideal for small spaces and can accommodate a variety of vegetables, herbs and flowers.
This video shows you how to make one.
--Bibi Farber
For more information see: http://workwithnature-info.webs.com