Water crystals are polymer-based crystals that absorb and slowly release water, acting like tiny sponges in the soil. They’re ...

Then you’ll use water stored in the hydrogels to grow new plants. Water-loving hydrogel beads swell when they absorb water and shrink when they release it. Credit: Kathy Ceceri Start your ...

That said, high humidity does decrease the rate at which water is lost from the plant, and so will decrease the uptake of water from the soil. As for how often to water, it is complicated! How often ...