A rather vexing chore for me is constantly replanting flowers on my deed because a rogue tree turned up. If a rare flower gets grown over its never a nice feeling. A simple tickbox on deed settings saying "protect flower tiles" would be a nice touch. When ticked trees will not spread onto a tile if there are flowers on it on that deed, when unticked spread functions as per normal. Nice, simple, clean. Optional Extra : Allow enchanted grass to keep its flowers so they can be protected off deed too.