No one would argue that the climate in North Texas is ideal for growing lettuce, a crop that thrives when there’s a chill in the air. But the region’s broiling summers are of no concern to Eddy Badrina, chief executive of Eden Green Technology, a vertical, hydroponic greenhouse company just outside Dallas.

The company, which sells its leafy greens to Walmart, controls every aspect of a plant’s life. At its 82,500-square-foot facility, cool air is pumped in to create the ideal microclimate around each head of baby butterhead and romaine lettuce. Seven miles of pipes deliver nutrient-rich water. Although natural light floods the space — setting it apart from vertical farms that block out the sun in favor of controlled lighting — additional LED lights obey a programmed algorithm directing them to shine just the right amount of light on each plant.

“We’re […]