you cant just ask such a open question.... come on i can say not to small is a bathroom size room... or i can say that ive grow inside a ice chest and it was ok so a trash can is bigger so its not to small.... u have to give us some kinda info so we can help you ... what kinda lights you want... soil or hydro, does it have to be concealed and secret, how long you wanna veg... how many plants you want, how big you want them ... like i said to many specs that you left out.. .maybe answer those questions and maybe someone will help you out