>>938730904
get some starter plants. anything sold as 'office plants' for indoors, they can survive being watered once a week and require barely any fertilizer or sun.
>but I want something useful
depends on sunlight. mint is a fucking weed in the semi shade, rosemary is difficult to kill if you have more sun
go for natives if you're out of other ideas - shit thats adapted to survive in your soil, climate, and rainfall tends to do well