Each year at this time, we bring the EarthWorks agronomy team together to reflect on the past year and to thank everyone who has supported us over the last 37 years. This year, we were joined by our friend and chemist, Lawrence Mayhew, one of our favorite and most popular guests.

As a team, we discussed the trends we are seeing across the industry, particularly in agronomic technology. By studying current research and the work being done within regenerative agriculture communities, it is exciting to see that Biological Soil Management is not only here to stay, but thriving within the sports turf world. The lawn care industry also came up, with many LCOs making the shift to carbon-based fertility and experiencing both agronomic and financial benefits.

Golf course construction continues to trend upward, and each of us has stories of turf managers who have seen significant success using the EarthWorks amendment package. Many of those stories have been shared through the EarthWorks Podcast. This team truly is a family, and that connection is clear in the conversations and interactions among coworkers and friends on the podcast.

We wish everyone a very happy holiday season, a Merry Christmas, and a Happy New Year. Most of all, we want to sincerely thank you for helping make the past 37 years so incredibly successful. Thank you.

Visit EarthWorks at: https://www.earthworksturf.com
Podcasts: https://www.earthworksturf.com/earthworks-podcasts/
2 Minute Turf Talks: https://www.earthworksturf.com/2-minute-turf-talks/

It is rare these days to see someone stay in a job for more than 26 years, and even rarer to find a person who pours themselves into their work as if it were their own company. This month, we have been celebrating someone who has done all of that and so much more.

More than 26 years ago, Lisa Kiefer walked into our office for an interview as an office support person. At the end of 2025, she will be retiring as the company’s Vice President. Over the years, many people in the EarthWorks extended family have spoken with Lisa on the phone or had the pleasure of working with her through one of her many responsibilities.

As the owner and president of the company, I can honestly and humbly say that if Lisa had not walked into our office that spring afternoon, we may not be here today. She has been instrumental in our growth and direction. She kept the company moving forward while the rest of us were able to get out into the field and help turf managers discover the real value of Biological Soil Management.

Many companies have someone like Lisa, but very few have someone who truly lives and breathes the work and carries such a deep passion for the mission we all embraced. She has been juggling balls and, more recently, elephants for her entire time with us. Unfortunately, elephants are not easy to juggle, so she has decided it is time to focus on her family, her six grandchildren, and life on the farm.

To say we will miss her is an understatement. Expressing how grateful we are for her warm spirit, contagious laugh, and incredible work ethic comes effortlessly. We sat down in the same spot where we first met Lisa to record this podcast, sharing a few laughs, reminiscing often, remembering old friends, and even shedding a few tears.

This is not goodbye by any means, but simply a change in the relationship Lisa has had for so long with the team and with all our friends at EarthWorks.

Visit EarthWorks at: https://www.earthworksturf.com
Podcasts: https://www.earthworksturf.com/earthworks-podcasts/
2 Minute Turf Talks: https://www.earthworksturf.com/2-minute-turf-talks/

Bob Wren has been a friend of EarthWorks for more than 35 years, and his career has taken him on a winding and memorable path through the turf industry. A graduate of the University of Maryland’s turf program, he began his career working alongside podcast alumnus Kevin Pryseski at Pine Ridge in Baltimore, Maryland. He then joined another podcast alumnus, Glenn Smickley, for the grow-in at the Robert Trent Jones Golf Club.

From there, Bob took on construction of the Palmer-designed Fawn Lake, navigating a maze of new environmental restrictions that stretched the project into a four-year effort. After one more chapter as a golf course superintendent, he stepped away from the profession for more than a decade. Even while working in turf-related roles, he eventually realized it was time to follow the advice he had always given his sons: go back to the work you truly love.

That decision led him south, trading snow for sunshine, and ultimately landing what he calls his dream job as superintendent at The Old Collier Club in Naples, Florida. His story is full of remarkable moments, including caddying for Arnold Palmer and mastering the challenges of managing Paspalum in high-sodium soils.

Bob is always engaging, entertaining, and generous with his experience. This episode is a wonderful listen for anyone who loves golf, turfgrass, or the winding roads that lead people back to their passion.

Visit EarthWorks at: https://www.earthworksturf.com
Podcasts: https://www.earthworksturf.com/earthworks-podcasts/
2 Minute Turf Talks: https://www.earthworksturf.com/2-minute-turf-talks/

The EarthWorks Podcast is approaching its 300th episode, hosted by Kevin Hicks, Jack Higgins, and Joel Simmons—each bringing a uniquely valuable perspective to the industry.

Kevin, with 25 years of experience as a golf course superintendent, can truly “talk shop” with guests. Jack brings youthful energy and a deep passion for biological soil management, while Joel, with more than three decades in the industry, has worked with many of the top turf managers from the early days of their careers.

In this episode, the three hosts revisit some of their favorite conversations from 2025. Their reflections lead into discussions on emerging technologies in turf and agriculture, Eco-Adaptive approaches, regenerative agriculture, the future of lawn care, golf course construction, and much more.

As you’d expect when these three get together, there’s not a wasted moment—just insightful conversation, plenty of laughs, and great camaraderie.


Visit EarthWorks at: https://www.earthworksturf.com
Podcasts: https://www.earthworksturf.com/earthworks-podcasts/
2 Minute Turf Talks: https://www.earthworksturf.com/2-minute-turf-talks/

In this special Thanksgiving Week episode, we want to express our gratitude for more than 40 years of support and for helping us advance the principles of Biological Soil Management across the industry. With over 250 episodes behind us, we’re celebrating the holiday by revisiting one of our earliest—and most beloved—conversations.

This week, enjoy a classic episode with our longtime friend John Chassard, superintendent at Lehigh Country Club in Allentown, Pennsylvania. John has led the care of this William Flynn–designed gem for more than 30 years, making it one of golf’s best-kept secrets.

From all of us at EarthWorks, have a safe, joyful Thanksgiving with family and friends. We are truly grateful for your continued support.

Visit EarthWorks at: https://www.earthworksturf.com
Podcasts: https://www.earthworksturf.com/earthworks-podcasts/
2 Minute Turf Talks: https://www.earthworksturf.com/2-minute-turf-talks/

This week’s EarthWorks Podcast is a real treat as we take you behind the scenes at one of the most famous public parks in the world, New York City’s Central Park.

Our guest, Zack Holm, Turf Care Manager, shares his unique approach to maintaining over 350 acres of beautifully manicured turf, all without the use of pesticides or herbicides.

Zack walks us through his biological and cultural management strategies, the challenges of managing turf in one of the busiest urban environments on earth, and the rewarding results of a soil-first approach.

It is an inspiring conversation for anyone passionate about sustainable turf management.
Don’t miss the video version of this episode on YouTube.

Visit EarthWorks at: https://www.earthworksturf.com
Podcasts: https://www.earthworksturf.com/earthworks-podcasts/
2 Minute Turf Talks: https://www.earthworksturf.com/2-minute-turf-talks/

According to Lawrence Mayhew, the EarthWorks chemist, calcium is the most important nutrient in plant production. While that may be debated, Lawrence makes a strong case for why calcium deserves top billing in any fertility program.

This episode begins with a discussion about ammonium sulfate and how it can release calcium from the soil colloid, making it more available to plants. Lawrence also explains how the presence of calcium in the soil triggers the release of root exudates, helping the element move into the plant.

The conversation explores different calcium sources, such as various forms of limestone and gypsum, and how they behave differently in the soil. Lawrence dives into the redox chemistry of calcium, explaining its true function in the soil and why it does not directly affect pH the way many assume.

The discussion wraps up with a look at how calcium operates within the plant and practical ways to improve calcium bioavailability.

If you are a fan of soil chemistry and Biological Soil Management, this is a must-listen. Whether you are already a believer in the power of calcium or still skeptical, you will find this episode both informative and memorable.

Visit EarthWorks at: https://www.earthworksturf.com
Podcasts: https://www.earthworksturf.com/earthworks-podcasts/
2 Minute Turf Talks: https://www.earthworksturf.com/2-minute-turf-talks/

Discover what it takes to run a 9-hole golf course carved into the Idaho mountains and the exciting plans to expand with a second nine. During the off-season, the superintendent transitions from turf to snow, grooming slopes at the nearby Silver Mountain resort. The conversation explores a deep enthusiasm for golf course architecture, favorite and bucket-list courses, and a hopeful perspective on the game’s future.

Visit EarthWorks at: https://www.earthworksturf.com
Podcasts: https://www.earthworksturf.com/earthworks-podcasts/
2 Minute Turf Talks: https://www.earthworksturf.com/2-minute-turf-talks/

This week’s episode features James Morgan, the Director of Grounds at Russell Lands in Alexander City, Alabama, home to two world-class golf courses, Wicker Point and Willow Point Golf Clubs.

James’ career has taken him from the team at Trinity Forest in Dallas, Texas to overseeing the construction and grow-in of the Core Crenshaw–designed Wicker Point Golf Club. The EarthWorks team recently visited the property and can attest that it is one of the best-conditioned courses we have seen in years.

Russell Lands, a lake community built by the Russell family of Russell Athletic fame, blends history, craftsmanship, and natural beauty. But being far from a major metropolitan area presents a unique challenge in attracting the next generation of turf professionals. The solution was the Turf Grass Invitational, a day of education and inspiration where turf students from nearby universities experience the EarthWorks Academy, network with industry professionals, and finish the day with a round at Wicker Point.It is an innovative approach to mentorship, agronomy, and community building in the golf industry. The conversation covers turf management, leadership, and the evolving role of superintendents.

A great day, a great conversation, and a reminder that when education and passion meet, the future of turf is in good hands.

Visit EarthWorks at: https://www.earthworksturf.com
Podcasts: https://www.earthworksturf.com/earthworks-podcasts/
2 Minute Turf Talks: https://www.earthworksturf.com/2-minute-turf-talks/

This week, the EarthWorks Podcast comes to you from the 13th hole at Shackamaxon Country Club, a classic 1916 A.W. Tillinghast design in Union County, New Jersey. Our guest, Superintendent Jack Meyer, shares the story of his four year journey improving course conditions and elevating player experience at this high traffic, historic course. Jack’s conversation is filled with practical insights, from his path to becoming superintendent to his recount of a devastating flood and the two-month recovery effort that followed. It is a must-listen for any turf manager looking to learn from real world challenges and successes in the field.

Visit EarthWorks at: https://www.earthworksturf.com
Podcasts: https://www.earthworksturf.com/earthworks-podcasts/
2 Minute Turf Talks: https://www.earthworksturf.com/2-minute-turf-talks/