Kat -- 12 feet! holy moly, I just had to rig up some extensions for some plants (Mexico Midget -- the name obviously does NOT refer to the plant height) that are about 8 feet tall right now...
Which brings me to another suggestion -- be sure to add some additional support to those cages or they can still topple over. (we have some heavy steel stakes that we pound in and tie the cages to). ("we" mostly meaning DH
)
