Our guardian angels will be present during the time when our souls will exit this world and abandon the material body. They will be there at the moment to offer us solace and support during that transition and then help us adjust to the realms of the spirits when our soul will be directed toward God. It will be at that point that the soul will become conscious of its eternal condition.
My father always told me that plants and flowers have souls. How else could wise King Solomon have spoken to them? He wouldn't have had much conversation with them if they hadn't had souls! We have to respect all growing things even if we do not understand their ways.