GREENKEEPER BLOG

How Much Can Surface Organic Matter Change in a Year?

by | September 23, 2026 | Blog | 0 Comments

Scheduling cultivation and topdressing is always a tricky and sometimes controversal task. These practices are disruptive to players, costly, and tough on turf equipment. How much cultivation is really required? What's the right amount of sand topdressing for a...
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A Thermometer Is a Better Clock Than a Calendar

by | September 23, 2026 | Blog, GreenKeeper Growth Series | 0 Comments

In the first article of the GreenKeeper Growth Series, we used nearly 500,000 clipping-volume measurements to examine how much putting greens actually grow. One of the clearest environmental signals associated with that growth was temperature. This week, we are taking...
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A Very Strong El Niño Is Building. What Should Turf Managers Expect?

by | September 15, 2026 | Blog | 0 Comments

El Niño is strengthening quickly, and the months ahead could bring unusual weather patterns around the world. The US National Oceanic and Atmospheric Association now gives greater than a 90% chance that the 2026–27 El Niño becomes very strong during the Northern...
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How Much Does a Putting Green Actually Grow?

by | September 10, 2026 | Blog, GreenKeeper Growth Series | 0 Comments

This launches the GreenKeeper Growth Series: an ongoing look at what we’ve learned from 500,000 clipping volume observations. Over the coming weeks, we’ll use this dataset to explore how putting greens grow, how factors like weather, fertility and PGRs influence...
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When 60% Regulation Still isn’t Enough

by | August 25, 2026 | Blog | 0 Comments

Summer Created a Misleading Growth Surge It has been a hot, humid summer across much of the U.S., and one of the most common questions we’ve received is some version of: “Why is my PGR program not working anymore?” The evidence is usually sitting in the mower baskets....
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Hi-Res Surface Organic Matter Analysis in GreenKeeper

by | June 17, 2026 | Blog | 0 Comments

Surface organic matter has always been one of the most important—and frustrating—variables to manage on putting greens. We know it influences firmness, infiltration, water holding capacity, and pest pressure. We also know that topdressing and cultivation are our...
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Why Your Rainfall Data May Be Wrong: The Challenges of Estimated Precipitation

by | June 17, 2026 | Blog | 0 Comments

GreenKeeper, like the weather apps on your phone, uses extremely high-resolution weather models to estimate current conditions and forecast future weather. These systems combine observations from airports, weather balloons, satellites, and weather radar with...
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A Completely New WhiteBoard Experience for Turf Managers

by | May 29, 2026 | Blog | 0 Comments

GreenKeeper WhiteBoard has been rebuilt from the ground up with a modern user experience, intelligent planning tools, and unmatched flexibility for daily turf operations.Daily labor planning in turf management is complicated. Every day, turf managers balance changing...
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Your Spray Program Shouldn’t Keep You Up at Night

by | April 20, 2026 | Blog | 0 Comments

​Building a spray program can be stressful. You're thinking about pest control, fertility, PGRs, wetting agents, and plant health products. Are products from the last application still doing the job? Then comes the mixing math. A misplaced decimal or a wrong unit can...
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Moving Beyond Pretty Maps

by | March 12, 2026 | Blog | 0 Comments

Today's weather forecast shows a 10% chance of rain in the late morning. Do you throw your rain gear in the cart? What if the forecast shows a 30% chance at 7:00 a.m.? Even without formal training in statistics, we use probabilities like these to make practical...
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Evolution of Data-Driven Turf Management

Evolution of Data-Driven Turf Management

by | Feb 14, 2023

The thought of using data and models to guide turfgrass management decisions may seem daunting, but golf course superintendents have been using both to improve course conditioning for centuries. Superintendents are incredibly observant, and data are simply a set of...

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Frustrating Frost Formation

Frustrating Frost Formation

by | Oct 18, 2022

It can be so frustrating to scout a golf course for frost on a crisp fall morning. It's 6AM and there is no frost on the course. Then the mowers get out and frost covers every blade of grass. How does this happen? The sun is starting to rise and then frost forms?!?...

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Do Wetting Agents Help Fairways?

Do Wetting Agents Help Fairways?

by | Oct 12, 2022

Wetting agents can easily pay for themselves when managing turf growing on sand-based or sand-capped soil. These products improve soil moisture uniformity, water infiltration rate and alleviate issues of soil water repellency - called soil hydrophobicity - in sandy...

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Late Summer Sugar Lows

Late Summer Sugar Lows

by | Aug 17, 2022

It's mid-August 2022 and many turfgrass managers feel as tired as their grasses. The sun is slower to rise, the shadows are starting to lengthen, and it's more difficult for me to pop out of bed when my alarm clock sounds. The weather has been brutal across much of...

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