Rebar? Not sure how that would work on the clay ground, but it'd be easier than PVC. Are your vertical PVC pipes on the fence hollow inside? If so, rebar looks like it'll fit right in (plus they're obviously sturdy and will last you a long time).
I use rebar to hold up my cardboard-tube pylons. Works very well. Just make sure you get one with a enough length to get it in the ground and have plenty sticking up to slip the PVC over. I got mine at Lowe's - I think it was under a dollar for each piece of 3ft rebar.
http://www.lowes.com/lowes/lkn?acti...961544&Ne=4294967294&Ntk=i_products&Ntt=rebar
I use rebar to hold up my cardboard-tube pylons. Works very well. Just make sure you get one with a enough length to get it in the ground and have plenty sticking up to slip the PVC over. I got mine at Lowe's - I think it was under a dollar for each piece of 3ft rebar.
http://www.lowes.com/lowes/lkn?acti...961544&Ne=4294967294&Ntk=i_products&Ntt=rebar