It is made in your own crafting inventory. Just have the needed items in your inventory and learn the engram to craft it.
Use it at ur metal farm to regrow the metal useful then but useless all other ways
Use it to regrow trees around your base in pvp to better hide your base
Good on pvp servers to hide your base or your tames
Magic powder that makes things reappear
I don't know if this item can work on mobile. I tried 2 times and there was nothing change
Good for the rp (role play) servers and to make nice trees to grow around your base pvp great for metal