Shelby Ellison, an assistant professor in the Department of Plant and Agroecosystem Sciences at UW-Madison, said the plants looked purposefully planted in the flower beds that contained mostly tulips but that it was unclear whether the plants could be used as marijuana without further testing.
“It is impossible to determine if they were hemp or marijuana without testing for THC content. I do think they were likely intentionally planted just because there were so many of them,” she said.