Growers in Ohio will soon be licensed to cultivate medical cannabis; however, they will have issues starting their crops.

Since it is illegal to purchase cannabis plants from anyone but themselves, they will not be able to bring seeds or plants across state lines.

“That is a matter to be determined by the cultivator. The state does not have this information,” said Kerry Francis, commerce spokeswoman, in a July interview.

Alan Brochstein, an industry expert who founded the financial site New Cannabis Ventures, calls the phenomenon an “immaculate conception.”

“The states typically will look the other way and let the starting material arrive,” Brochstein said, guessing the material would come from a mixture of the black market within the state and other states, “either of which would be a (legal) problem.”

Spokeswoman for the Pennsylvania Department of Health April Hutcheson refers to a 2014 U.S. Department of Justice memo that included “preventing the diversion of marijuana from states where it is legal under state law in some form to other states,” among its priorities. In addition, attorney Jeff Sessions currently remains against the legalization of cannabis.

Earlier this year, Minnesota lawmakers cracked down on one of the state’s medical cannabis companies whose former executives were charged with illegally shipping $500,000 of cannabis oils to New York.

So far, growers do not know how to purchase their seeds, and the Justice Department has not provided any answer on Ohio’s medical cannabis program.