you can grow them great as houseplants.I grew my white one that way in a hanging basket for 9 years.I got a green goddess last year,but grew it over the winter so would be bigger as was a divsion.I've let green goddess go dormant in the ground cause is hardy enough that I can do that.it keeps some green at the base and when gets cold I just kick some leaves over it.
As a houseplant give it a nice bright sunny window and can water once a week.make sure the pot is well draining so no root rot problems.It will keep its leaves,then can move outdoors when temps stay in 50s at night.they like humidity,you may need to set
plant on a tray of gravels with water over them or group
plants together.
Know all about confussed........I grow annuals that are actually hardy annuals...annuals that are actually perieneials& annuals that self sow madly