GardenHacker:
not your typical seedy site...

Remember to Eat Your Weedies

Lawn Aikido

Killing the weeds? Why? They're pervasive (aka "easy to grow"). So? If you had easy to grow mangos and figs in Zone 4, would you call them weeds? I don't think so. How about that Kentucky Blue? Can you eat that? Not really. There's two solutions that I can think of for Lawn weeds: eating them, as I've mentioned, or crowding them out with other plants you'd like even better. For the edible solution, here's some basic guidelines you must follow: "...Your Weeds You, too can collect edible weeds, but keep but keep this in mind:

• Never eat part of any plant unless you have positively identifyed the plant and know that it is edible.
• Before collecting dandelions or other edible plants from your lawn or park, find out if they were been treated with herbicides to kill the weeds. If so, plants themselves will have absorbed some of the poison and they will be unsafe to eat.
• If you see decaying pet (dog, cat, ect.) waste near the plants avoid collecting from that area. Dangerous bacteria grow on these decaying wastes.
• When harvesting edible plants do not take them all. Leaving some untouched will help ensure that there will be another crop of wild foods in the future. ..."

Recipes to after the Link Edible Estates - by Fritz Haeg shows how and why you can and should change your lawn habits (via treehugger tv)Link
No highspeed internet or just looking for pics? Here's more of Fritz Haeg's work: Link
So why do this? "...As one might imagine, edible landscape elements are those that can be used for food, as well as for ornamental beauty. Vegetables, herbs and fruits can add variety and color to the landscape, and if well maintained, they can also look very attractive and even add a touch of elegance. Most people prefer to keep the edible elements of their landscape to the back portions of their property. While this may be reasonable for a more conventional garden plot, a well placed squash patch in the front yard or beautiful raspberry bushes against a fence can look quite attractive anywhere on your property, and fruit trees are always welcome. Strawberries and herbs make excellent ground cover and peppers and tomato plants make excellent accents in flower gardens. ..."Link
Over across the pond, they're busy too: an incredible before/after of a rooftop garden: "... From this seed of an idea grew a forest garden – food-producing, low maintenance, no-dig – based on a natural woodland ecosystem. It was designed to be an educational tool for raising awareness of global issues, including sustainable development and the economic and historical importance of plants. ..." Link