And don't forget- the TDC said it would be spending $300 per sign for landscaping. Add the cost of maintaining this landscaping (read: irrigation system at each sign) in accordance with the scenic corridor rules that will go into effect on Feb 20th, and the cost to "improve" each sign goes even higher. Why not spend that money on new signs, and use the blue signs at Helen McCall or other suitable setting?
In this case, I think irrigation of landscaping is a non-issue since they would be using native plants. There are types of native plants that have little if any "additional" water requirements after initial plantings. If you look at TDC accesses, they don't typically have irrigation systems and the plants do fine. Also, look around in all the natural areas in Sowal where there aren't irrigation systems. As far as initial watering, they can add different additives like Stockabsorb that will give the plants a head start.
