I have sort of been gifted with a Peace Lily at my office. It is fairly large but just does not seem happy. Its leaves are small and the flowers are really green. It was repotted, I believe a year or so ago. I am wondering if it needs to be divided or what. The light it receives is flourescent light all day long - no sunlight. I may be able to post a photo tomorrow. I would appreciate any advice that folks can give me.
They are not really very demanding for light, but a very dark part of the office might not be very good. I have seen them do OK (not great) with just fluorescent light. Much better if you can get a grow light and put it on a timer.
What are your watering practices?
Are you adding any fertilizer?
Is the office dark all weekend?
My peace lily thrives under compact fluorescent lighting or CFLs. Many plants do. I currently keep my peace lily in my bathroom where the humidity is higher (they like humidity) and the light fixture has CFLs, four 23-watt CFL bulbs. I also have a CFL grow lamp, but am waiting for a new bulb to arrive from Amazon. Remember, not all grow bulbs are the same! My peace lily did not like 6400K CFL grow bulbs at all! So I'm switching to a warmer color temperature 2700K CFL that is similar to common every day CFL lighting. 6400K is a cooler color temperature, a bluish-white light where 2700K is a warmer yellowish-white light similar to common CFL bulbs. The grow lamp fixture I have is relatively inexpensive made by HydroFarm (http://www.hydrofarm.com/product.php?itemid=125). Some people just use common CFL bulbs as grow lights and plants love them! If I were you I'd consider a change of lighting and added humidity. Office buildings have been notoriously known for having dry air. Spray-misting the peace lily from time to time might be good. If you do use filtered, bottled or otherwise un-chlorinated water. Some people even add MORE humidity by keeping their humidity thriving plants on top of trays filled with water and pebbles. The thing I like about peace lily plants is how very quickly they communicate or show changes regarding how they feel - and this works both ways.