How much water does a cactus absorb in a year?

The amount of water a cactus absorbs in a year can vary significantly depending on the species, size, and environmental conditions. On average, a mature cactus may absorb anywhere from a few gallons to over 100 gallons of water annually. Factors such as rainfall, soil type, and temperature greatly influence this absorption. Cacti are adapted to retain water efficiently, allowing them to thrive in arid environments.