Any problems connected to Gardening is probably a bug. For several days I have tried to harvest some elder Grapes.After i harvest say three the fellow comes on screen and says I will lose items because Backpack is full.
I looked at the items that drop from the three I harvested and my Backpack has plenty of room. There is no reason to get the warning I am about to lose items cause my BP has lots of room. If I try to continue to harvest the plant will harvest but I get nothing not even XP. So I have about abandoned Gardening until the bug is killed. I have Gardens planted at my Palaces I bought with crowns, Never had problem with any soil not showing up. If your garden soil is not showing at a crown bought palace, it must be a bug cause I have gardens at my palaces.