Vacant lots, being overgrown by weeds. I would think the Greens would be ecstatic over this. Let’s return all city land to nature. Isn’t that what they want?
——overgrown by weeds——
In the process you cite the plants are not weeds but the initial foothold of the coming climax botanical growth that in the area is probably forest. The process is sucession, as the plants you cite grow in future times, blackberries and or perhaps sumac and perhaps some cedar that are over
topped by the climax species...... trees. The climax forest then begins to support the undergrowth plants that thrive in the areas under trees.
That is the way moonbats reach climax