Sapin is a French word for this. My first live Christmas tree ever. I watered it well and cherished every second it graced my humble apartment in Paris. I knew I could not keep it forever as it would turn fire hazard after some time, but I could not bear the thought of dumping it in the garbage bin either. But then France had a wonderful solution.
Here is the corner of Place des Vosges where Sapins to be recycled are piled. They would be treated by professionals and made into something wonderful.
After I removed all the ornaments, I let my tree rest in a tab of water for a couple of hours. It looked pretty good and it joined other sapins. My dear tree would not be lonely in the company of many other trees.