Hearth & Horn

My husband has said he's worried about a wooden compost heap box because compost gets quite hot and becomes flammable, which has suggested to me that the corner-point of the elemental system between Fire and Earth is not "wood" (which I got to because the red + the green forms a brown), but compost. A thing of earth that creates heat. That would also fit with the Domains in this area of the Map, the sense of the agricultural.