in YO quality dropped significantly ~20%
I think they implemented something regarding soil below and surrounding the garden. We have 6 gardens build on paved ground inside of the village, build next to each other and quality there dropped the most. I also have 6 gardens away from each other scatered randomly and surrounded with different high quality soil (soil, forest soil, fertile soil) and quality droped by 1-5% The one surounded with 100 quality forest soil droped to 1 herb 99q, several 68q and more 33q. Previously all gardens weld same resoult - 1-3herbs 100q 5-6 68q, and some 32-34q
for planting I use 1herb, 6 bones, 10 water all 100q. I save the dung for my "artificial herbal garden" to get the 100q herbs i need for planting.
i'm also experimenting adding diferent stuff but it seems to do nothing, stuff like 100q mushrom or 100q organic ingredient
related skills are 100 herbalism, 100 nature, 100 farming