Buy a roll of 6” concrete mesh and hog ring yourself some cages. It’ll be they last ones you ever buy.
This. Cut the bottom wire off so the remaining "spikes/ pins" can anchor into ground. If necessary one "T" post can give even greater stability.
And this too^^
After about 2 season, I have nip the ‘spikes’ off and move up a square. They rust and break off
Cage gets a little shorter every couple of years but, hey.
