How often to water: Cheng says you should water a snake plant when the soil is fully dry, and not before.
The ZZ plant is a hearty plant that grows beautifully, and quickly. “It can do well in low light conditions, and it known for being low maintenance,” says Carter. Its waxy, green leaves aren’t large, but each plant has about a million of them, which makes each one a real looker.
How often to water: Water when soil is completely dry.
Cactuses are designed to make your life easier: these thick, fleshy plants retain water better than other species, so even the most forgetful and water-withholding among us are able to keep the them alive. In the best conditions, a saguaro cactus can live for hundreds of years. If you do this right, you’ll be able to pass your pet cactus down to your grandchildren.