Nope, not here. 100% artificial stuff that lasts years and decades. Christmas tree, lights, ornaments, star on top, Nativity set, etc.

We've added to our collection over the years, but have never thrown anything out. We like to make a big deal about Christmas and Easter, because those are the biggest Catholic feast days. They are worthy of a bit of "special decor". We want to really CELEBRATE them. We don't decorate at all for any lesser "holidays". So the kids (for example) will get the distinct impression that Easter/Christmas are important.

As for being eco-friendly/minimalist/frugal, we achieve that by not wasting, not throwing out, not "updating" for the sake of novelty, fashion, etc. Whatever we spent on Christmas decorations was frugal and a good deal, because you have to divide the cost by how many years we've used it. The cost per year becomes quite low! I think we bought our current Christmas tree in 2007. It cost about $160, but we've used it many years, and it's still good.

If everyone in the US spent money like me, the economy would collapse horribly.
If that isn't true about you as well, there is something wrong with you. You don't want to be a "good g0y consumer" who makes sure Mr. Shekelstein gets as many shekels as possible.

What I'm trying to say is, Consumerism is bad and anti-Catholic at its core. It's materialism, frivolity, and worldliness incarnate.

Consumerism has one virtue: go to the store and spend some money. "Do it for the economy" they say. Who cares if the poor could better use that money, or what happens to the world (or the earth) as a result of your spending choices.

Matthew makes excellent points.

There are certain "manufactured things", that can't be replaced by "natural biodegradable things", that most would consider desirable and important for the Advent/Christmas/Epiphany seasons.  People will have a curated collection of these that they store and bring out every year.

(1) The advent wreath.  While the wreath itself can be fresh evergreens, and the candles acquired new each year, something is needed to hold the candles.

(2) The nativity set.

(3) For the Christmas tree, while light strings aren't absolutely required, some decoration is desirable.  An absolutely bare tree in the living room would seem odd.  One could use stringed popcorn (a bit tedious to make each year, but easy and do-able if there are a lot of kids to help), which was common in earlier years.  One could also insert cuttings of the Holly Berry plant, with its bright red berries, or poinsettia cuttings with the flowers.  Still, most like to hang ornament balls or castings (for example, I have cow, bicycle, and tree ornaments which have special significance).  Often times ball ornaments have been hand made rather than purchased, and may be heirlooms passed from generation to generation.  Also, many like to have an angel or star at the top of the tree.

You could get your wife to make a bunny cake for the kiddies.