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.
^^^^^^^^^^^^^^^Oh, tee posts are great, but a very economical alternative for this "light" application, is get 1/2" EMT conduit, comes in 10' lengths. You can cut them in half, or any length you want where you can use a long and a short. Hammer one end flat and drive it in. They work in many places!
