Suitable soil is well drained.  Water when soil is dry to the touch.  This plant will wilt fast when it gets too dry, but it will come back as long as it doesn't get too dry.  Place in windowsill or under grow light.  Needs a lot of bright consistent light.  Repot annually as it is a fast growing spreading plant.  It will fill the container fast.  Can harvest anytime but tastes strongest in the Autumn.