Seedlings for these areas need to be pollution-resistant and able to withstand dry, often nutrient-poor conditions. Hardy species such as hardy grasses or drought-resistant shrubs are ideal, as they can also help reduce soil erosion.
 
Multistrate selection according to availability from the following species: 
Scotch bark, Bird's-foot trefoil, Coreopsis, Striped agrimony, Chamomile, Annual knapweed, White immortelle