Winter protection of garden water stuff in California?!?

[LGY]

As a former New Yorker who lives in apartments, I was surprised that I woke up this morning and found my garden hose was frozen overnight in Sacramento. I literally just tried to sow grass seed yesterday and watered them. I definitely turned off the faucets and left the spraying on to let the air out before I went in. There are multiple ice pieces that got pushed out from the hose.
Do I need to protect the outdoor gardening pipes and stuff in California? I mean I ran out to Home Depot and got/put one of those faucets cover on today, but there is this multiple dimension piece like this that I can’t just put in a sleeve due to its position.

Side question, what’s good to plant in that narrow space?

thanks in advanced.

 

[SeniorCitizen]

For that amount of pipe a couple of ideas come to mind to prevent frozen pipes. Heat trace tape covered with insulation or a large 5 sided box to house all that pipe and allow the warmth of the structure to prevent freezing.