First things first, hemp is not the same as marijuana.
Hemp is a variety of cannabis plant, especially when grown for fiber. Unlike marijuana, hemp has a low THC chemical makeup and does not cause hallucinations or mood swings. Marijuana is more for medicinal or recreational use whereas hemp is used to soothe the mind, body and soul (ever heard of CBD oils?) and can be used in food, construction and automobiles.
Recreational use of marijuana has been legalized in the majority of the United States and Canada; however, not all states are on-board with marijuana and hemp cultivation.
Here's the list of U.S. states that voted "YES" or "NO" to hemp farming and growing:
Colorado: Yes (a top hemp producer growing over 21000 acres of hemp last year)
New Hampshire: No
New Jersey: Yes
New Mexico: Yes
New York: Yes
North Carolina: Yes
North Dakota: Yes
Rhode Island: Yes
South Carolina: Yes
South Dakota: No
West Virginia: Yes
Washington D.C: No
Hemp producers should consider protecting their hemp plants from deer damage beginning in the spring months. It is also recommended to plant away from flowerbeds and vegetable gardens where deer will be sniffing around for food. Consider installing a deer fence for best results to protect plants of all types from whitetails.