Of course you can. It can provide the right balance of moisture for plants and keep them at a good temperature. Dead Plastic Plant Plants Plastic Plants Plant Photography If your lawn is green in some areas and brown in others you might be dealing with dead patches in the lawn but not an entirely dead lawn. How to make a dead plant come back to life . Then do the same to the dead stems one third at a time until you see signs of green. When the soft stems of perennials die they quickly dry and turn brown. In these cases the grass is still alive and will come back to life and return to a beautiful hue when its intended season returns. There are many benefits of using mulch in your plant beds. Some plants however display the remarkable ability to survive near total desiccation less than 5 relative water content which causes them to appear dead. Dead tissue is a part of a plant in which all the cells have died and will never come back to life again. Its important thou