I did exactly the same thing...about a month into flowering, I dropped the light and broke a major branch (woody, just under "pencil thick"). I just stuck it in the ground next to the mom (I grow in 19 gallon tubs, so there was room). No hormones- just stuck a big plastic bag over it and watered. Dang thing rooted enough to keep growing and I harvested it about 8 weeks later. Bag seed sativas... ya gotta love them!

Some strains will root "at the drop of a hat", others, it's "Have fun trying"!

Granny :hippy: