If your starting them indoors make sure their mature enough to take the outdoor conditions. Afoot tall should be good enough to get them a good start. It depends on where you live as to when to put them outdoors. In most places around May is a good time to get them out; that way they would have time to veggie good and be around six foot or better; that depends on what strin of seeds your growing. A good seed from some good bag seed will be fine to get some decent smoke for you and your husband.