All living creatures die one day or the other. Plants also take their last breathe due to one or the other reason. Plants usually die due to two reasons, i.e. cultural death wherein something is applied to plant which it cannot endure and dies and physiological death meaning something inside the plant could not survive and triggered its death.
Some plants die due to lack of water especially when the weather is extremely hot and there is no water supply. Sometimes the plants die due to some kind of gas leaks. If you suddenly find lawn, plants, shrubs and trees dying in your garden, then ask the gas company to come and check for leaks, if any.
Lately, if you have installed pavement in and around your lawn and suddenly find your plants dying then the reason could be pavement because it does not let the soil breath and plants grow.
The other common reason behind a plant’s death is overuse of fertilizers. When an overdose of fertilizers is given to the plant then it leads to quick build up of soil salt around the tree, sucking out the moisture from the plant and making it die due to dehydration.
Sometimes the plants or trees die when their roots are cut severely while pruning the tree or carrying around some kind of construction work. This also leads to infection in the roots of the tree, leading to slow death of the plant.
The physiological reasons behind plant’s death involve natural death wherein the plant gets too old to survive and diseases caused by fungus, borers, heavy winds or water splash. Sometimes termites eat away the plant, which leads to slow death of the plant. On occasion, some other infectious agents cause root rots, collar rots and cankers in the plant, which eventually leads to the death of the plant.