Vertical gardens save water by growing plants closer together. As their roots adhere to a shared surface and don’t have to search for water, they can thrive at denser planting ratios and get more nutrition from the same watering. A vertical garden is also slightly elevated, meaning it often gets dew in the morning.
Root-zone heating systems further reduce water usage. By raising temperatures in the hydroponic substrate, growth is accelerated, enabling plants to reach maturity faster with fewer overall resources used.
Also, feeding solutions are more efficient as water evaporates at a slower rate due to there being less available surface area when compared to traditional gardening methods, which spread out over an open area of land. Finally, vertical gardens benefit from not needing to rely on natural rainfall and less soil disturbance prevents weeds from taking root, both reducing the amount of H2O needed for irrigation.
Vertical gardens provide an easy way to reduce water consumption while still nurturing healthy crops during extended periods of drought. By focusing resources and improving efficiency, these outdoor plantings help conserve Earth’s finite supply of fresh liquid gold.