Hi 237SJ, This lily originates from sunny south Africa, so if you have a sunny sheltered spot where you can plant it, it should be fine.
it grows from tubers which can be left in, but a good thick mulch at the end of the growing season, should keep em protected over the winter months.
So I don't think you need to bring it indoors.
Feed it about once a month with a general purpose fertilizer throughout the growing season.
Next step, buy a decent garden chair sit back and enjoy :-)