Mesa’s Gateway Library Keeps a Garden Robot on the Patio, and You Can Watch It Sow Fall Seeds Nov. 14

Most library patios hold benches, shade and maybe a book drop. The one outside the makerspace at Mesa’s Gateway Library also holds a garden bed with a robot riding above it.

The machine is a FarmBot, a computer-controlled gardening system that can plant seeds, tend crops and remove weeds. On Saturday, Nov. 14, library staff will run it in front of an audience at the FarmBot Fall Seeding Open House, a free program scheduled from 10 a.m. to noon at the THINKspot makerspace inside Gateway Library, 5036 S. Eastmark Parkway in southeast Mesa. The library’s event listing promises a simple show: “See FarmBot in action as we demonstrate how it plants seeds with precision technology.”

The program is listed for adults and families. The event page does not mention registration, and it notes that food may be served, with a standard allergy disclaimer. Anyone who wants to confirm details ahead of time can call the library at 480-644-3100.

A new library built around hands-on learning

Gateway Library is less than a year old. The City of Mesa held its grand opening on Dec. 6, 2025, and full services began two days later. The city described the 28,000-square-foot building as Mesa’s first new full-service library in 30 years.

The branch was designed with technology people can touch. Visitors walk in past Pixel Paseo, a 9-foot-by-40-foot digital art wall built from more than 33,500 LED lights. Across from it is a sensory room with specialized lighting, colors, acoustics and furnishings for neurodivergent visitors; the city says Gateway is a Certified Autism Center through the credentialing group IBCCES. A small rolling robot named Romi, made by the library technology company Bibliotheca, greets patrons and helps with wayfinding. When it opened, 12News reported that Romi was the first robot of its kind in a U.S. public library.

“We wanted to make sure the building was welcoming to all abilities,” Mesa Library Director Polly Bonnett told the Daily Independent before the opening.

The garden robot sits with the makerspace. Ahead of the opening, the Daily Independent photographed THINKspot librarian Jeff Stoffer demonstrating the FarmBot on the patio outside the makerspace area. In a December 2025 report, 12News described the same patio setup as a place where patrons can watch the machine “plant, water and record progress for different seeds.”

Assistant Library Director Brandon Williams explained the thinking behind Gateway’s gadgets to 12News. “We’re trying to kind of broaden it out to make sure we can allow people to see things they probably won’t see anywhere else and get cool experiences,” he said.

How a FarmBot works

FarmBot is made by a company of the same name that describes its product as open-source CNC farming. CNC stands for computer numerical control, the same basic idea behind the 3D printers and laser cutters elsewhere in a makerspace: a tool moves along set tracks to exact coordinates that a computer tells it to reach.

In a FarmBot, that tool travels on a frame over a raised bed. Instead of a print nozzle or a laser, it carries garden tools. Depending on how it is set up, it can drop a seed at a precise spot, water a plant or deal with a weed. Gardeners lay out the bed in the company’s web app, which shows the garden as a map, and the robot follows that plan. FarmBot currently sells its Genesis and Genesis XL kits and a simpler Express model, and the company markets them to schools and universities as well as home growers.

A machine like that will not replace a gardener’s own judgment, and it is not meant to. What it does well is show, in plain sight, how much of good gardening comes down to spacing, timing and steady watering. Watching a robot place seeds at exact intervals is a quick lesson in why seed packets say what they say about depth and spacing.

Why fall is the right time to watch

The timing of the open house matches the low desert’s calendar. In Mesa, San Tan Valley and the rest of the East Valley, fall is the main planting season for cool-weather vegetables. Carrots, beets, radishes, lettuce, spinach, peas and many herbs go into the ground as nights cool, and gardeners who sow now can be harvesting through winter and into spring.

This will not be the library’s first seeding demonstration. Mesa Public Library’s calendar shows an earlier FarmBot Winter Seeding Open House held at the same THINKspot on Jan. 10, 2026, which suggests the robot’s garden is replanted with the seasons rather than set up once for show.

A beginner class two days later

For anyone who leaves the demonstration ready to plant something themselves, Gateway Library has a follow-up on the calendar. On Monday, Nov. 16, from 6 to 7 p.m., the library hosts Welcome to AZ Gardening in its Inspirian Community Room. The free talk is listed for adults.

According to the library’s description, the session introduces the Sonoran Desert, what makes it unique and the challenges it presents to gardeners. It covers Arizona gardening best practices and why they matter, and attendees receive copies of go-to publications for Arizona gardeners along with planting calendars for vegetables and flowers. The talk also hands out reference lists of University of Arizona and Master Gardener publications so people can keep learning on their own.

Taken together, the two programs make a practical pair: a Saturday morning to see precision seeding up close, and a Monday evening to learn when and what to plant in desert soil.

Using the makerspace

The FarmBot is the most unusual piece of equipment at Gateway’s THINKspot, but it is not the only one. Mesa runs THINKspot makerspaces at all of its library locations, and each offers a 3D printer, laser cutter, sewing machine, vinyl cutter, studio space and an iMac with professional video and audio editing software. Gateway’s reservable equipment includes an xTool laser engraver and Bambu Lab X1E 3D printers.

To use THINKspot equipment, patrons must complete training, sign a liability waiver and agree to follow the space’s guidelines. The library says its trainings are conducted online. The FarmBot does not appear on the list of equipment patrons can reserve, so people interested in learning more about it should contact Gateway’s branch coordinator, Erin Jones, at erin.jones@mesaaz.gov.

Gateway Library is open Monday through Thursday from 10 a.m. to 8 p.m. and Friday and Saturday from 10 a.m. to 5 p.m. It is closed Sundays.

Who can use it

The branch sits in the Eastmark neighborhood, a short drive north of Queen Creek and San Tan Valley, but the city says it is open to everyone. Mesa Public Library cards are free for anyone who lives, works, attends school or owns property in Maricopa County. San Tan Valley residents, who live in Pinal County, should check with the library about card options, though walking in to watch a public demonstration does not require a card.

A garden robot on a library patio is a small thing. But it puts a working vegetable bed in a place where families already go, next to the 3D printers and the sewing machines, and treats growing food as one more skill a library can teach. On Nov. 14, anyone who stops by can watch the season’s first seeds go in.