We have a nursery specializing in perennials, mostly daylilies and belong to a daylily mailing list. Yesterday a hybridizer mentioned that his daylily seedlings were three times larger when started in red plastic cups versus white insulated cups. This led to a discussion on reflected red light. Gardens Alive sells a red plastic mulch called "Turbo-Tomato" which they say was developed by the USDA and Clemson University and supposedly increases tomato yields by 12-20%. I wonder if any of you have tried it and what the results were. I'm not a pure organic gardner, but I recommend the Gardens Alive catalog. It has some of the best pictures of pests and diseases that I have seen. Their phone # is 812-537-5108 Dave Anderson Tough Love Chile Co. http://www.tough-love.com e-mail Chilehead@tough-love.com