"Wild spinach about 7 feet tall and fully mature. Well-fed wild spinach is well-branched and produces a huge quantity of seeds when mature. The leaves are still edible at this stage but are reduced in quality, taking on a somewhat off-flavor. According to research on other mature plants, the leaves on these older plants retain most of their nutrients and phytochemicals as long as they are still green." (Left: The author stands in for perspective, 2006.)

Imagine what you could do with eighteen delicious new greens in your dining arsenal including purslane, chickweed, curly dock, wild...