In general, garden plots aren't a work around to support much larger settlement populations than the game designers intended for those particular settlements, but they may be useful in improving effectiveness of farming in many other settlements. There are a few potential settlements - e.g., the Boston Airport, Home Plate and the Mechanist's lair in which all of the workshop's planting functions are deliberately disabled. The garden plot may be used to supplement the food supplies of settlements with unsuitable terrain. Once placed, plants function in the garden plots in exactly the same way as in natural ground. The garden plot, accessed through the resources/miscellaneous menu in the workshop, is a type of world object that the Wasteland Workshop add-on permits the Sole Survivor to construct in most settlements using the workshop's resources/materials menu. A garden plot is a constructible item added to Fallout 4 by the Wasteland Workshop add-on.
