I ' m of the there ' s no way it can happen camp , but I don ' t think it ' s impossible . It would require 1 . Trump being mostly a disaster , even if just from an optics perspective Probably likely 2 . The Democrats begin able to recruit excellent candidates the bench is thin in most contested states , so . iffy 3 . The Democrats being able to craft a unified , effective message that will turn out the vote in an offyear election recent history says absolutely not , but you never knowSadly , the likelihood of each gets lower and lower as we go down , and they basically need all three to retake the Senate in a year when the numbers just aren ' t in their favor at all . <| sep |> Since I found someone here who seems to understand a little bit about this stuff let me ask a question . In terms of the space required how effective can this be compared to natural methods like trees or other growing plants ?