when you are thinking of growing pot in California , you should think it deeply because you are going to start a business some think some time, if you are thinking what it takes to grow pot in california . then listen you can start to grow pot in California as California authority gives the license. you have to pay 5000$ at the beginning to get the license. You have to pay 2500$ every year. there is also a tariff of 50$ in every ounce.