I was thinking about stat potential maximums, and herbs vs potions of stat, and I began to wonder how much we really know about training stats "naturally." I suspect the existence of herbs for raising dexterity, willpower and toughness has tended to discourage folks from finding other means of training those stats. On the other hand, it's been many years, folks are likely to have discovered almost everything by now.

Here's my question: Is it possible to use Gardening on a square that contains an herb bush? Does doing so destroy the bush (in much the same manner as picking it does) but yield herb seed(s) instead of herbs?

And if not, then in my limited experience, Gardening is virtually useless due to the unavailability of herb seeds. I'd very much like to be mistaken about that. Is there some other way to acquire herb seeds?