How long can plants last without water?

say i have a pot of normal flower plant, how long will it last if i dont give it any water until it dies?

How long can plants last without water?
Based on water requirement ; plants are grouped in to three major groups,viz. Hydrophytes, Mesophytes and Xerophytes.



1) Hydrophytes - These plants are water lovers . They grow and survive only when water is in plenty.

They are either fully submerged in water like Elodea , Hydrilla and Vallisneria and sword plants ( These are always planted in aquariums to make fish happy and for decoration)



Such plants will begin to die if taken out of water ( Just like fish!).



Some float on the water surface( Lotus) .These also cannot do with out water.



2) Mesophytes - Most of the crop plants come in this category . The water requirement varies from crop to crop; but still they require regular supply of water. and begin to wilt once the water deficiency threshold is crossed.



3) Xerophytes- ( Cacti and other Succulents)These are the plants of arid zones or deserts and have good capacity to withstand water deficiency.



In fact they can go with out water for months together .



Now which one you have in mind?



Your pot plant is certainly not a hydrophyte. It would have been dead by this time .



If it is a cactus ( Xerophyte ) it can survive for at least a month.



If it is a common garden plant then can not pull on for more than a week. These are general observations,
Reply:Depends on three parameters. One type of the plant itself, number two the season in which this experiment is being performed and lastly just before starting this experiment how much shower of water has been given to the plant. In general, you can just expect to get your plant waiting for you if you return within a period of seven days in Summer.