Philodendron Billietiae Large 4" US SELLER 32.5 with 68% humidity That's the regular temperature in daytime with grow lights on, and my satin pothos aren't happy. They aren't thirsty, they are heat stress ( ) : r houseplants Parlor Palm 6 Inch Pot Perfect Plants Most people don't realize this, but a simple spider plant is one of the most powerful natural air purifiers you can put in your home. NASA's Clean Air Study found that spider Philodendron longilobatum Happy Plant Nursery