Economy as a Garden

I thought the metaphor of the economy as a garden in this article was interesting. The metaphor is that a garden left to it's own devices quickly is over-run with weeds, but a good attentive gardener can make that garden productive. HOw applicable is this metaphor to the economy? Hard to say, but as some recent posts show, I think we probably have our share of weeds right now - most recently the big banks rigging interest rates- that need some serious trimming if they can't act better. :_)