The live sphagnum I had outside in my greenhouse in a terrarium (where I kept it very moist) has turned tan in most areas, but the growth tips and a few others parts are green still. Some of the tips burnt. Not sure if it was light or humidity or heat or what. I moved them inside and put them around my neps, hoping they will spring back to life and surround my beloved plants with joy.

The really green piece you see has been in the terrarium for a while and it doing great. The rest of it is basically tan, but I would say about 1/10 of it is still green. Is there any chance I can bring it back to life? Is it done for?