Calathea Lancifolia (Rattlesnake)
Your Calathea will thrive in a spot with medium light to bright indirect light – keeping it in front of an east, west, or north window is preferable. Direct sunlight can burn the leaves of the plant and cause its colors to fade.
To help your Calathea thrive, water it thoroughly and then allow the top inch of soil to dry out a bit until the next watering session. Underwatering the plant and letting it stay dry for too long can result in brown leaf tips and fringes. Overwatering the plant can cause the plant to droop and it will take time to recover.
Like other tropical houseplants, your Calathea Rattlesnake likes high humidity. Any brown fringes on the leaves hint at dry air and low humidity. Keep the plant happy by misting the leaves two times a week with regular room temperature water.
They do best between 65-85 degrees Fahrenheit. Indoor temperatures should be at least 60 degrees Fahrenheit and avoid drafts, cross-winds and any sudden temperature fluctuations.
Calathea are considered to be non-toxic to humans, cats and dogs.