|As an art project, I'm proposing to make a very formal knot garden using only weeds or a plant once considered a weed but whose inclusion in the garden is now taken for granted. Is there a sterile form of dandelion or do you have any suggestions for genera that support the above description. Thanks for your help.|
|There's a whole list of plants which were originally planted in gardens but have escaped cultivation and are now considered invasive weeds. Some of these plants are restricted in certain localities and cannot be grown in gardens because of their potential to escape and replace native plants. This puts you in the position of having to be very selective when planting your weed garden.
For a complete list, contact Pacific Northwest Exotic Pest Plant Council, 4409 SW Obsidion, Redmond, OR 97754.