But a weed is simply a plant that wants to grow where people want something else. In blaming nature, people mistake the culprit. Weeds are people's idea, not nature's. ~Author Unknown
A rose in a field of peonys is a weed, as much as an peony in a field of roses. It is all a matter of perspective.
I don't get too fanatical about weeds in my own garden, they have their place and purpose. Weeds,like purslane, which is also an edible, shade the soil and slow the evaporation of water from the ground. Some weeds like dandelion, absorb toxins from the ground. Some like mullen, are large,and can be turn into the ground and return their nutrients, the also attract bees, as does the humble and good smelling gill0over0the ground. And then there is the tasty wild mustard. Does anyone know anything redeeming about quack grass? I can only think of it is good exercise digging it out.