How do you know when to repot a snake plant? When to Repot a Snake Plant
You will know it's time to repot when the top of the roots are swirling or coming out of the bottom of the pot. Another sure sign that your plant should be repotted, is if water drains straight through the drainage holes when watering. This means your snake plant is root bound.
Why is my Sansevieria floppy?
Like all succulents, the snake plant is susceptible to root rot in soggy conditions, and droopy snake plant leaves often result when the plant is overwatered. Water the snake plant only when the top 2 or 3 inches (5-7.5 cm.) Don't water again until the top of the soil is dry.