GreenKeeper is an essential decision-support tool designed exclusively for turfgrass professionals. Our vision is to transform how the turf industry makes daily decisions as we discover and share turf research with the world.


Designed For Professionals

GreenKeeper is a web-based application that can be accessed through the web browser on your computer, tablet or smartphone. It does not need to be downloaded from a mobile app store. Register and sign in at the top of this page.

Product Tracking & Alerts

The GreenKeeper App automatically keeps track of product efficacy, including PGR breakdown with GDD models, and notifies you when control has expired for one of your products.

Nutrient Management

Use GreenKeeper to track your fertilizer applications and monitor changes in soil and tissue test results over time. We have partnered with Rock River Labs to provide full integrated testing experience. Select a test type, enter the site information, print a label, and view your results directly in GreenKeeper a few days after they are received by the lab. Prices range from $20 to $50 and Premium members receive a 10% discount.

Performance Tracker

Turfgrass managers record a lot of data to help make management decisions. Managing that data manually can sometimes be challenging. With the Performance Tracker, managers and maintenance crew members can directly enter green speed, clipping volume, average soil moisture, color, etc. Crew entered data is approved by the course managers to ensure quality before it is then displayed graphically within GreenKeeper. This is a Premium feature and will improve your management precision.

Pest Outbreak Models

GreenKeeper uses hyper-local weather data to help predict pest outbreaks. The Smith-Kerns dollar spot model is now fully integrated into the site. Set your risk threshold and see what cool-season turfgrass areas are protected or at risk of a dollar spot outbreak.

Product Applications Log

You can select an area of your course to treat and choose products and application rates from an extensive turf product database. Then, watch the GreenKeeper App calculate how much product goes into a sprayer tank, the number of tanks needed, and the number of gallons in the mix. When you are done, you can print off an easy to read report with mixing instructions!

Multiple Users

Turf management professionals need to work together and the GreenKeeper App makes it very easy! Just give the App an email and it will add that professional to your course!

Pest Reports

You can tag a target pest ( curative or preventative ) to the products you add to your turf or report pest outbreaks directly to help other turf managers prepare for potential problems. Then, the GreenKeeper App ( with the help of it's users ) compiles maps showing the relative locations of recently reported pests.

Desktop & Mobile Friendly

Designed to efficiently function on both desktop computers and mobile devices, the GreenKeeper App allows users to quickly reference prior applications and monitor pest control while on the course. Have confidence that your mixing calculations are correct and know your turf is covered at any time by simply looking at your phone!

Weather Reporting

The GreenKeeper App monitors the weather so that you don't have to. It's unique tools takes into account local weather conditions and gives you a hyper-local view of how your product application is doing and when it is time to reapply.

About Us

GreenKeeper is a decision support tool designed to help with agronomic decision making in the turfgrass industry. The web-based application pairs weather and application data with modern agricultural models predict product and fertilizer performance. Models include plant growth regulator performance, early season applications (i.e. ethephon applications for seedhead), the Smith-Kerns dollar spot model, and MLSN-based soil test interpreations. Users can also track performance data including clipping volume, green speed, soil moisutre, and more with Performance Tracker.

GreenKeeper is operated by TurfGrade, LLC, which continues to improve the GreenKeeper user experience, add new turfgrass research, and offer educational opportunites such as GreenKeeper University and GreenKeeper Solutions. Our company's vision is to transform how the turf industry makes daily decisions as we discover and share turf research with the world.


GreenKeeper is made for the entire turf industry, regardless of a facility’s annual budget. Support from local superintendent chapters and industry partners has allowed us to keep the core GreenKeeper features free to all users. This freemium version includes management essentials like PGR GDD tracking, current Smith-Kerns dollar spot risk, sprayer mixing recipes and product and fertilizer tracking. It also includes site-specific weather data and fully integrated soil/tissue/water testing from our lab partner Rock River Labs.

GreenKeeper Premium Membersip is $69 per monthly or $40 per month when billed annually. These membership fees allow us to staff a full-time developer plus several freelance developers to create new features, improve existing features, and quickly respond to member change requests. GreenKeeper could not function without the support of our Premium Members.

Features that are specific to GK Premium include Application Advisor, GDD Models for PGRs and DMIs, Growth Potential and other environmental models, Inventory Manager, and Performance Tracker, plus Premium members receive a 10% discount on all soil/tissue/water testing.

If you’re new to GreenKeeper, try the free version first. Then upgrade to those great Premium features.

Thanks to Nufarm for supporting GreenKeeper App for the past five years.
© 2020 TurfGrade, LLC
PO BOX 85223
Lincoln, NE 68501