Lindsey Letourneau
Christine Courneyer
Lizzie Lydon
Introduction
Our group project is based on the growth of plants involving the use of different
soil mixtures and wetting agents. The purpose of our experiment was to determine what
kind of soil and other plant mixtures allow the plant to grow the best. We set up five pots
with different soil mixtures and a back up pot for each one. In the first two pots we used
the soilite potting mixture. In the third and fourth pots we put regular potting soil. In the
next two pots we made our own mixture without a wetting agent made of vermiculite,
perlite, limestone, and sphagnum moss. In the seventh and eighth pot we mixed regular
potting soil with a diaper wetting agent. In the last two pots we put in Pro-Mix. We put
four seeds in each pot and we watered them on the weekdays when we are in school. We
also measure the growth about every other day. We hope to come to a conclusion of what
soil mixture will help the plant grow best.