Okay, I know some people are going to wonder if I'm obsessed with plastic bottles. The fact of the matter is that they're free, they last FOREVER, and if the project doesn't work out, you can still recycle them. Science Saturday «
I have used this method of plant propogation and it works well. I like the idea with the string wick which is an improvement on my method of allowing the neck to dip into the water reservoir.