pollution tolerance of ferns for shady/dry spots
I read the thread about ferns for shady/dry spots with much interest and was wondering if anyone knows how pollution tolerant they are. I am working to revitalize an urban garden/flowerbed on a medium-busy side street where they will be exposed to effluents from car traffic. Since ferns have a reputation for being finicky I was wondering if anyone had used them successfully in an urban bed.
The spot is dappled to full shade beneath a tree where a few Hostas and such already are planted, it's moderately dry, with irrigation (one drip hose so far) installed. The soil is sandy but I have compost and some leaf mould to work in.