The Hustle traveled to North Carolina to look at Plantd, a startup making structural building panels out of fast-growing grass instead of trees. The product is an alternative to oriented strand board, the OSB sheets that wrap the walls, floors and roofs of most American homes. The video notes that around 94 percent of single-family US homes are framed in wood, and that the lumber behind it swings in price with trade disputes and storms. Plantd's answer is a perennial grass that the company says grows about six inches a day and can be harvested twice a year, where pine can take 40 years. According to the video, Plantd has already sold 10 million panels to the largest homebuilder in the country and is betting that smaller, modular factories sited next to farms can undercut the traditional lumber supply chain.
The interesting part is not the grass, it is the factory model. The video says a full-size OSB mill is the size of a neighborhood, costs around 500 million dollars, takes five years to build and roughly six months to start up, and is so expensive to idle that operators avoid shutting it down even during a supply shock. Plantd is going the opposite way, building a miniaturized, fully electric production line it says can be placed near the fields that feed it. That matters in the current market: the video points out that Canada supplies about 85 percent of US softwood lumber imports, which leaves American homebuilders exposed to tariffs and cross-border disputes. A domestic, farm-adjacent material that sidesteps that supply chain is the kind of thing a builder watches closely, which helps explain why a major customer signed on before the capacity exists to fully serve it.
According to the video, Plantd's co-founders are former SpaceX engineers, and the company borrows that playbook by building most of its hardware in-house and vertically integrating. The CEO, named in the video as Nathan, says the long-term plan is to build at least 18 more of its machines in farm-adjacent factories by 2030, with each line costing around 5 million dollars. The grass owes its rigidity to lignin, the company's agriculture lead explains, and Plantd says its panels are independently certified as code-compliant in all 50 states, with internal testing showing them stronger and more moisture resistant than standard OSB. The scale problem is stark: the video says the homebuilder's order grew to 10 million panels, but at the current pace of 250,000 panels a year it would take 40 years to fill. To close that, the video shows a transplanting robot the company calls its cutting edge, which it says moves about 1,770 plants an hour, roughly 15 times faster than a person, with a target of 20 million plants by 2028. Founded in 2021, Plantd has raised about 47.5 million dollars in total, according to the report. These figures come from Plantd and the report, and have not been independently verified here.
Bottom line: This is one of the more genuinely interesting building-materials bets in years, and the SpaceX-style focus on the machine rather than the product is the smart bet. But the honest read is that Plantd has sold a vision far larger than its current output, and closing a 40-year gap means flawless execution on hardware, farming and financing all at once. The grass is not the risk. Scaling factories without running out of money is, as the CEO more or less admits. Worth rooting for, too early to bank on. Watch whether the next factories actually come online on schedule.
Commentary on a third-party video. Figures and claims are as presented in the source and have not been independently verified. Spotted an error? Tell us and we will correct it.