Here are the photos

The more mulch or leaves you put between the cold and the ends of the stems, the more protection. Several (4 or more?) inches taller or wider are usually needed; varies depending on just how long temps go. Water deeply before the temps arrive too as plants can dehydrate too.

I place a piece of cardboard with heavy rocks on top so the leaves will not blow away and to force the leaves to press down as lightly placed dry leaves will not protect much (I prefer mulch). Observe the results in the Spring and use more leaves or mulch in winter 2021-2022 if this amount does not help (note: I could not tell if the stems were well protected in the pics because the stems were not visible; looks like the plants are still small plants). Due to settling, you may want to add more leaves in mid winter. I keep a spare amount of mulch handy in the back to use for that purpose or if we get some ice.

Remove the winter protection in Spring.

My plants are still green but the leaves look ragged after being out there for a whole growing season. It has only gone down to 30F so far.

Thanks as always Luis! I plan on putting cardboard and bending the chickenwire over and covering with freeze cloths.