Once you have access to the Locker Room, you'll need to keep an eye out for Jose. For a price, he'll help you clear out the locker room, so you have enough space to start growing back there. The objective is to clear out all of the boxes, but you can start growing once you have an empty spot on the floor. Just go to the alien section of the shop and buy an Alien pot and some alien weed strains and start growing! Don’t forget to visit your plants and water them often. Once you’ve harvested a plant, you’ll start to get some visits from some out-of-this-world clients.