|I purchased two very large pots of Chinese Evergreen. There about 10-12 plants in each pot,leaves are 12-15" long, and I have repotted each in 15" pots. I have installed recessed spot lights in the ceiling 8-10' above these plants using regular 50 watt bulbs and supplemented by filtered northern natural light. One plant is doing quite well after 4 months, with very little extra attention and is beginning to send up healthy new growth. The other is sending new growth too, but many have a black and rotted looking tip even before opening, others have a white verticle strips of something that might be powdery mildew (but definetly NOT mealy bug), and even further, there is a shiny, stickey-to-the-touch substance on many leaves as well. Also, some of the outer leaf stalks are showing yellow. I have begun to water this pot (the most recent 2 waterings at 2-3 week intervals) with a mixture of 1 tsp of liquid detergent to a gallon of water. Additionally, I have washed the leaves individually with a mild soap and water bath. The pots are too heavy for me to be able to take to the tub for showers.