His spokesman Tom Evenson said Walker would review the bill but did not commit to signing it.
The proposal would establish state licenses for farmers who want to grow industrial hemp. People with drug convictions wouldn't be eligible for the licenses. The plants couldn't contain more than 0.3 percent THC, the active ingredient in marijuana.
At least 30 states have passed legislation allowing hemp farms. Supporters of the Wisconsin bill say hemp has a wide range of uses and farmers should have the option of growing another profitable crop.