What is the best way to slowly convert our Kentucky blue glass lawn to a more drought-tolerant lawn, such as turf-type tall fescue? I was told it was best to aerate our existing lawn and spread turf-type tall fescue seed afterwards. If aerating/seeding every spring and fall, I'm told the conversion should take place in approximately 5 years. Is this accurate information? If so, at what rate should we spread the seed? Also, we have already aerated our lawn this season but don't plan to start our sprinkler system for another month. Since I know we need to keep the seed moist for germination, should we wait to seed until the sprinklers are running? And if so, do you think we would need to re-aerate at that time?
Thank you so much for your advice.