Insuring that the cut ends of the evergreens have water/moisture. depending on how it's arranged you could use something like a terrycloth towel very well moistened to keep the greenery fresh longer.
I have a plastic chair mat under my computer desk that the edges are curled and won't lay flat. Have been unable to bend them back as the plastic is hard
Hi Terry! There is some great information on how to do this. Good luck and Happy Holidays to you!
https://www.autumnhillnursery.com/how-to-keep-holiday-evergreens-green/
https://www.ballarddesigns.com/howtodecorate/2014/10/how-to-keep-your-holiday-greenery-fresh/
Insuring that the cut ends of the evergreens have water/moisture. depending on how it's arranged you could use something like a terrycloth towel very well moistened to keep the greenery fresh longer.