Here is what you would need to do a scrog outdoors..
Clones
shovel
Just dig your holes and plant the plants almost laying on the ground,at an angle kinda.. When the side bracnhes start to shoot up,just cover them with a peice of 2x4 chicken wire.with a tent stake holdin' it down. Your gonna want to form the wire in a semi circle. Go from there... Just keeping them under the screen. Nuttin' major need to accomplish what your wanting to do.