PEORIA – Cannabis is not hard to grow, but doing it well requires know-how. It just depends on your expectations,” said Wes Duffy, owner of Tru Health Care and Wellness in Peoria, a shop that carries cannabis-growing supplies. “It’s a weed; it only needs soil, water and light. You will yield a little bit if you were to just set it up in the window and let it grow. You could probably get more if you set it on the deck, because it likes direct sunlight. And you would get even more if you set it in the ground because the soil is endless, and the bigger the root, the bigger the fruit. Outdoor plants can get humongous.”