i made goatsweed my house pepper - have several plants and they can live for several years. if you do a forum search there is a pro goatsweed post.
once the pods ripen to a shiny red, you will experience their earwax melting heat. the flavour is very pungent, extreme of cayenne, you may not like the raw pepper flavour. i make powder out of some and freeze others and use them in soups/stews/stirfry.
i have written on this several times, the pinching of goatsweed leaves for further branching but the posts may be archived. this is a fun thing to do.