Wasteland workshop adds "garden plots". Basically raised garden beds that you can place almost anywhere. Some settlements don't have much ground or the ground isn't where you'd like it to be. You can also place your garden on top of your defense tower. Cool.
Now what other things have to go into the ground for them to work? Hmmm. Water pumps! Yep you got it. You can put a water pump (either the hand pump or the new powered pump) into a garden plot then pick them up with a long press of the action button and put it anywhere. Now you can keep your water supply safe on top of your tower too.
