Sure, but why would you want to?
As a kid, when it was my turn to mop the kitchen floor, I would dump the dirty mop water on the rubarb plant outside the back porch door, in attempt to kill it. Little did I know or realize that I was preventing the bugs from eating the rubarb leaves therefore making the rubarb a healthy planting. I wondered why it was thriving. Bummer. My sister would sit on the back steps with a salt shaker and munch away on the stems of that nasty plant. I still, at age 76, don't like rubarb.