Osmosis is the natural movement of water from a place with the highest concentration of nutrients to one with less. For example, a cannabis plant, via a water-permeable cell wall in the roots, absorbs nutrients from the water when the concentration of nutrients in the plant is lower than in the water.
Learn more about osmosis:
More plant processes:
Photosynthesis | Photolysis | Photo Tropism | Pollination | Assimilation | Dissimilation