I have received a number of calls in regards to slow grow-ins of Kentucky bluegrass surfaces. Bottom line, this time of year, the turf will have to pushed aggressively with nitrogen to achieve 100% cover before the winter season.
Click HERE to see an article from Dr. David Minner at Iowa State University. Take a close look at the last 2 paragraphs. Push that bluegrass during grow-ins when required.
Go to j-dturf.com to learn more about J&D Turf.