Your branches green delight us!  Earlier this year, I planted a mandarin.  The past few days have been filled with frost and air temps in the mid and low 30s, and a few leaves were damaged.  Just a bit ago, it started snowing, and the overnight low is expected to be somewhere south of 30, so I created a structure around the mandarin using t-posts, upon which I strung outdoor lights.

Ordinarily, I wouldn’t fuss this much over a plant, but this is its first winter, and I REALLY want mandarins! Once it’s really well established, perhaps next year, I’ll leave it to fend for itself, but for now, i’ll baby it a bit.