About once per month
Allow the soil to dry out completely between waterings
*better to under-water than over-water
Bright indirect sunlight is ideal
Also tolerates lower light levels
Direct sunlight will cause leaves to burn
TOXIC TO PETS?
Yellow Leaves :
Needs more natural light
Yellow & Brown Leaves :
Overwatered - make sure soil is drying out completely between waterings
Stalks Growing Tall & Falling Over :
Needs more natural light - stalks are likely stretching to search for more light
Leaves Wrinkling :
Needs more water - if the soil stays dry for too long, the leaves will begin to wrinkle. Leaves should become firm again within a few days after a thorough watering.