Becky, that is beautiful! Gives me another idea for raised beds, which I think I'll end up doing. I love what you've done!
I'm wondering if the lime is because of possible acidity in the pine bark? I know pine needles are acidic, so maybe the bark is too? I suppose that the lime would balance that out? Just a guess, and it's the only thing I can come up with about the lime, especially since the mixture has no soil in it.
