Well these are not ‘normal autos’. Size very much depends on the available soil volume with the ones in the raised bed being over 5 feet (1.5 m) after just 8 weeks. These plants tend to be tall and skinny so a sea of green approach might have been better than trying to tie them down (too much work at scale with too many losses due to broken limbs). Anyway, they have flowered nicely and things look pretty good. Harvest starting soon.
Aug 21: switched to plain water.
@Eroben, thanks. It’s 3.5 inch cell size netting that I used on the big Candyland manifold. With the tie down going on two plants there, I just wanted to see if it would work. Seems like it, and I’m amazed at how well the tie downs are working.