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What is Aeration and Overseeding?

September 11th, 2026

1 min read

By David Lee

What is Aeration and Overseeding? (Thumbnail)

Aeration and Overseeding (AO) season is here! 🌿

In this video, David Lee, Master II Certified Quality Assurance Expert, explains how aeration and overseeding work, why they’re so effective in our region, and what you can expect from Oasis Turf & Tree’s AO program.

With the heavy clay soils in Cincinnati, Dayton, and Northern Kentucky, lawns often struggle to absorb water and nutrients. Aeration and overseeding help break up that soil, improve root growth, and thicken your turf for a healthier, more resilient lawn.

What You’ll Learn:
✅ What aeration is and how it improves soil health
✅ Why double-pass core aeration makes a difference
✅ How overseeding helps fill in thin areas
✅ Why fall is the best time for new grass growth
✅ How turf-type tall fescue improves lawn durability

Key Takeaways:
💡Aeration removes soil plugs (cores) to reduce compaction
💡Roots grow into open spaces for better access to water & nutrients
💡Oasis performs a double-pass aeration for deeper results
💡Overseeding introduces turf-type tall fescue for stronger lawns
💡A starter fertilizer helps new seed establish quickly
💡Full lawn recovery may take more than one season in bare areas

Important Tip:
💧Proper watering after AO is essential—follow your technician’s instructions closely to ensure successful germination and long-term results.

David Lee

Starting as a lawn care technician in 2016, David Lee has spent the past 10 years growing with Oasis Turf & Tree. Today, he serves as the company’s Master II Quality Assurance Director, bringing extensive field experience and a deep understanding of the industry to his role. He began his career in the lawn care industry in 2011, working part-time in the grounds department for Findlay City Schools while attending college. After a year in the role, he transitioned to a full-time position in 2012. Throughout his career, he has earned several industry credentials, including licenses from the Ohio Department of Agriculture and the Kentucky Department of Agriculture, as well as certifications through the National Association of Landscape Professionals. At Oasis Turf & Tree, David Lee leads employee onboarding, manages the quality assurance team, and provides hands-on training to help technicians succeed in their certification exams. With a strong focus on education and continuous improvement, he works closely with employees across the company, offering guidance, coaching, and support whenever possible. David Lee has played a key role in helping Oasis Turf & Tree achieve the highest number of licensed technicians of any lawn care company in Ohio, while also contributing to the efforts that earned the company the National Association of Landscape Professionals' Award of Excellence for exceptional results. When he's not at work, David enjoys cheering on the Cincinnati Reds and making memories with his wife, Caris, and daughter, Marlow. In fact, he jokes that Marlow has been to more Reds games in the past two years than he had been to in the previous 20. Before finding his career in the lawn care industry, David originally planned to teach environmental studies. Outside of work, he's also an avid hiker, enjoys spending time outdoors, plays the drums, and is kept busy by his two four-legged sidekicks, Burt and Belfast. To learn more about David Lee and his role at Oasis, visit the Oasis Turf & Tree YouTube channel to watch his Meet the Team video.