It depends on the size of the container. For example, a larger container needs more water to keep roots moist. It depends on the type of plant. For example, a mature tomato may need 2/3 gallon of water daily. Also, it depends on where it is in its lifespan. For example, needs are generally highest early on as the plant is getting established. Underwatering generally is recognized by much more roots than shoots. So it is important to keep the pump timer correctly set. Just as important as proper watering is proper drainage.
It depends on the plants (which are not named in the question!) as some plants are thirstier than others. Also, over-watering is just as bad as not watering enough.
Plants need soil,air,water and sunlight to grow into healthy plants.
plants need water, sunlight and fertile soil to grow.
Plants grow from what they need is the sun, soil, water, and the nutrients in the soil.
All plants need water to grow.
Water
Plants need sunlight, water, and soil to grow.
Plants need soil,air,water and sunlight to grow into healthy plants.
A plants require water to grow
To grow
plants need water, sunlight and fertile soil to grow.
Cacti need little water to grow
because water is good for plants
All plants need water to survive and grow.
Just enough to achieve sprouting of seed
water
Plants need more than light to grow, they also need water. The desert does not have sufficient water to support large plants except on an oasis.
Plants need water to make glucose. Glucose is a sugary substance that plants make. Glucose is the food that plants need to live. So yes, plants do need water.