How much water do most plants need?
the plant needs water everyday or every other day (depends on the plant)
the plant needs water until the soil is all wet :)
That depends on what kind of plant it is. Some plants, such as cactus, do not need much water. Other kinds of plants need more. So you would have to ask about a specific plant in order to get a specific answer. It really depends on the plant. Some plants need more water than others, such as a cactus and a bean ,the bean needs more water than the cactus because the cactus stores water…
It is not advisable to give excess water to plants because the soil will lose much of its nutrients and minerals. It will become too diluted. ***** Plants that are not adapted to rooting in water (water-lillies, for example), will suffer from rot-rot and die off. Most plants need to root in soil that drains well - though they can probably stand short term flooding.