Most of our terrariums need watering with a spray bottle about once every two to three weeks. You can also dribble a scant number of drops from a faucet into the soil, but beware of overwatering. Because the glass vessels are often rounded or are nearly closed environments, the air within easily becomes too humid and the plants grow unhappy. Keep the vessels indoors and out of direct sunlight so the plants do not get singed through the glass.
Enjoy.
Succulent Sisters Terrariums 