May all your weeds be wildflowers. – Author Unknown

Man is the only critter who feels the need to label things as flowers or weeds. – Author Unknown

What is a weed? A plant whose virtues have not yet been discovered. – Ralph Waldo Emerson, Fortune of the Republic, 1878

We can in fact only define a weed, mutatis mutandis, in terms of the well-known definition of dirt – as matter out of place. What we call a weed is in fact merely a plant growing where we do not want it. – E.J. Salisbury, The Living Garden, 1935