I put a S. purpurea in my daughters windowsill terrarium about 5 weeks ago. *about a week after I put it in there, I noticed this kind of nasty milkish brown looking stuff in one of the pitchers. *I asked her about it, and she told me she threw a hunk of choclate into one of the pitchers. *I told her that if she couldn't find it crawling or flying around outside than not to feed it to her plant. *I asked her when the last time she saw a hershey bar crawling around outside was. *In the last 4 weeks since puting that hunk of choclate in the pitcher the thing has had this huge growth spurt and produced 7 new large pitchers.