believe it or not, I would prefer a medium and large area effect spells for this. Let me set up a scenario for you. You have 138 plots, but don't have 276 Energy to replant them all. You plant one, and use the plant all spell and now you have your plots all willy nilly. Seeds in the same grouping are now on different timers. With a large and medium area of effect spells for this, you can target which you want to harvest and replant.