That depends. If they are truly green, as in this seasons growth and had this season's leaves on them when cut, then moisture control is exceedingly important and very fussy. They will rot much easier in overly wet soil, and will dry out if not kept in a humid environment (with frequent additions of fresh air). If they are older wood (as in last years growth), but taken while the plant is not dormant, they should be treated normally, and will root easily.
Green wood can be rooted in a bag just like dormant cuttings.