Just click the green fabric on a pole, and watch.
Credits to griffpatch for the sprite layering. Rest by me, including the idea. How does it work? Each generation there is a chance that a dandelion reproduces, with one seed, one new danelion, and that dandelion has a chance of mutating to have more seeds, meaning more and more dandelions. Eventually, the dandelions will take over all of this nice grass. But, these dandelions also have a chance of dying, so, for the dandelions, it's just a game of chance.