We are located in western kentucky and had a new lawn construction (till and seed) scheduled for this fall. But we are waiting on an irrigation guy to install his system before we can proceed and this is not finished yet. So it looks like we will be installing the lawn in the spring, because I don't want to take the chance this late in the fall. What are the risks to seeding in the spring? The irrigation system will be in place so proper watering will not be a problem throughout the year.