But succulent plants have a spread-out and shallow root system that can quickly pull in water from the top inches of soil, though the soil has to be saturated since succulents aren’t good at absorbing water from soil that’s only a little moist.
Succulent plants also are well suited to retaining water, important in an environment where rainy days are rare.
Succulent plants can store water in their leaves, in their stems, or in their roots.
And to keep that moisture from evaporating in the hot, desert Sun, most succulent plants have a waxy outer layer that makes them almost waterproof when their stomates are closed.
They also preserve water by minimizing their surface area.
The more of the plant that’s out in the Sun, the more potential there is to lose stored-up water.
And that means that most succulent plants have few, if any, leaves.