Review: Irrigreen Smart Irrigation System 3.0 (2026)

Conceived by one of the inventors of inkjet printing, Irrigreen launched years ago as a disruptor in the smart sprinkler space with its clever “water-printing” technology, which fires off thin beams of water instead of an en masse spray, allowing for better control over where water goes and less waste. It’s since been copied by others, but it’s still arguably the most technologically advanced watering system on the market.

Alas, Irrigreen has always come with one big caveat: It’s designed only for sprinklers, not drip irrigation, which is far more efficient. It also requires a wholesale upgrade to use it properly: New plumbing and new electrical are both required to work with its unique sprinkler heads.

For 2026, Irrigreen has not only updated that sprinkler head to its third iteration, it has also added a long-time-coming feature in the form of support for its own drip irrigation valve. I received a kit that included both types of devices for evaluation.

Call Before You Dig

Irrigreen must be installed underground, and while you can DIY an Irrigreen setup, I really wouldn’t recommend it unless you’re a seasoned plumbing pro. The base system is a confusing mess of tubing, wiring, connectors, and gear that requires a bit of know-how to set it all up. As well, any time I’m burying pipes in the ground, I greatly prefer having a professional involved to ensure everything is watertight when it’s all done.

Photograph: Christopher Null

For the purposes of this review, Irrigreen sent me a kit that can connect to a garden hose, so the yard needn’t be dug up just to give the system a try. I’ve tested Irrigreen in two prior incarnations, so I was familiar with how it works, but first-timers are likely to be a little flummoxed by Irrigreen’s unique approach—with each sprinkler connected to the next via a bespoke cable—and its inexplicable lack of setup documentation beyond a few YouTube videos. I’ve long complained that Irrigreen’s instructions are entirely online and are needlessly convoluted. If anyone needs a high-quality printed installation manual, it’s Irrigreen.

However you set things up, the heart of the operation is the Irrigreen controller, a semi-industrial box designed to be wall-mounted and which offers a few basic controls to allow for simple manual operation. You’ll need the Irrigreen app for almost everything, though, so these controls are unlikely to see a lot of use. While plumbing must be run to each sprinkler head, Irrigreen works on a single control cable, which is attached via two screwposts underneath a front-mounted hatch. Unlike standard irrigation systems, you only need to connect two wires to get your entire system online, with subsequent heads daisy-chained in sequence.

Photograph: Chris Null

Irrigreen supports up to 16 sprinkler heads, so any reasonably sized yard should be fully coverable. Note that if you have existing sprinkler lines, you’ll also find additional screwposts in the box allowing for connection to up to eight traditional sprinkler valves—so you don’t have to rip out your old lines entirely if you’re just getting started with Irrigreen. (That said, the magic is in the Irrigreen sprinkler heads, so while the controller can work with older valves, you won’t be able to take advantage of Irrigreen’s key features.)

Watering the World

Connecting Irrigreen’s sprinkler head to a garden hose isn’t particularly difficult, and I was able to configure the components—plumbing and electrical—in just a few minutes. Irrigreen also sends an iPad preloaded with its control software for testing, and it wasn’t until after I paired the controller with the app that my troubles began.

As noted above, Irrigreen’s water-painting system works by spraying narrow streams and rotating through 360 degrees—the same process I described in my review of the Aiper IrriSense 2. To control the distance of the throw, it first has to calibrate itself based on your water pressure, but the Irrigreen app repeatedly failed when I tried to complete this process. The issue appears to have been related to a firmware update for the sprinkler head, which wouldn’t take, and after hours of attempts I finally gave up. After a weekend of idling, I returned to the unit on Monday morning and found that it was finally working properly; presumably the firmware update took during the off hours.

Irrigreen app via Chris Null

Irrigreen app via Chris Null

With the system up and running, I was able to use Irrigreen’s app to map my yard, dropping pins to mark the farthest point from the sprinkler in each direction where I wanted water to reach. Again, this process is nearly identical to Aiper’s, though I felt Irrigreen’s mapping app was noticeably faster to respond. Within just five minutes, I had an effective map of my yard and was able to run on-demand irrigation and set up watering schedules.

Watering runs can be manual, based on length of watering time, or they can be set to use Irrigreen’s auto water technology, which uses localized weather data to adjust the length of scheduled runs up or down or skip them altogether, depending on ambient conditions. I was only able to test auto water on a limited basis since this works over a timespan of weeks or months and the temporary test setup is necessarily too limited for that, but it appears to work as well now as it has for me in past encounters with the tech.

Photograph: Chris Null

I was also impressed with the Irrigreen 3.0 sprinkler head, which has seen tiny refinements over the years and which now works better than ever. The spray appeared more precise and easier to control with the app, thanks to new pressure-sensing features in the hardware, and the sprinkler head is now self-cleaning, visibly burbling with water before each run to flush out any dirt. I was very happy with how well the system covered my lawn, though the maximum throw of 30 feet meant some far corners of my backyard were out of reach when testing with a single sprinkler head.

Drip Time

Photograph: Chris Null

I also put Irrigreen’s new Smart Drip System (sold separately, starting at $342) to the test—and fair warning, it’s even more difficult to install than the sprinkler. This arrived as a jumble of components in a plastic bag, again with just a YouTube video guiding me through how to connect all the pieces. It’s designed for in-ground installation, but I was able to use it with a stand and hose for temporary testing. The good news is that the Smart Drip valve can daisy-chain to your Irrigreen sprinkler valves, so an existing system can easily be expanded with a couple of snapped-in wires, provided you have plumbing available. The output end of the system connects to standard drip tubing, so you can use existing plumbing or add your own for this part of the project. (Irrigreen sells its own in 100-foot increments.)

There’s less intelligence in the Smart Drip System, because Irrigreen’s water-painting technology doesn’t work here, but it does work with Irrigreen’s auto water tech and can skip, shorten, or lengthen runs automatically. A pressure sensor in the Smart Drip valve also helps to locate clogs and leaks—something traditional drip system valves can’t do—so there’s at least an incremental value in upgrading to this pump over just connecting your controller to a standard valve.

A Heavy Outlay

Irrigreen has never been cheap, and that hasn’t changed. The system remains one of the costlier irrigation systems, though you can at least theoretically get by with fewer sprinkler heads and drip valves than you would with a traditional irrigation system, not to mention needing less pipe to be trenched into your yard. My opinion of the system remains the same as it has long been: If I were installing irrigation from scratch, I’d give Irrigreen’s system some serious thought. But I’d never dig up my yard and tear out working irrigation to put one in.