FILE - This April 6, 2018, file photo shows the leaves of a marijuana plant inside Ultra Health's cultivation greenhouse in Bernalillo, N.M. New Mexico would legalize recreational marijuana sales without exceptions for dissenting cities and counties under a rebooted proposal form legislators that emphasizes small business opportunities and ready access to pot for 80,000 current medical cannabis patients. Legalization for the first time enjoys the full throttled support of second-year Democratic Gov. Michelle Lujan Grisham, who set up a volunteer commission last year to vet health and public safety concerns about recreational cannabis and on Thursday, Jan. 16, 2020, pitched the benefits of the pot economy to a gathering business leaders. (AP Photo/Susan Montoya Bryan, File)

DENVER  |  Early cold temperatures and snow in Colorado may have destroyed millions of dollars worth of outdoor plants, cannabis and hemp companies said.

The drop of about 70 degrees Fahrenheit (21 degrees Celsius) occurred too early in the growing season for farmers to harvest the plants, Marijuana Business Daily reports.

Jon Vaught, CEO of a cannabis biotech firm Front Range Biosciences, said the temperatures below freezing Tuesday and Wednesday combined with snow were “catastrophic for growers.”

Nick Drury, director of cultivation at Denver marijuana company Lightshade, said the decreased supply from the outdoor crops is likely to result in less lower-grade competition for indoor growers, while the price for extract materials could increase.

At the PotCo outdoor marijuana farm outside Pueblo, co-owner James Lowe said he was ready for low temperatures but unprepared for up to 9 inches (23 centimeters) of wet snow.

The farm has about 7,000 plants trellised together and the heavy moisture collapsed much of the canopy over them. The losses could reach between $4 million and $5 million, he said.

“We were on pace for the largest harvest we’ve ever had,” Lowe said. “The weight of it was what ended up being the problem.”