"G"ARDEN GLOSSARY
'(<a href="http://www.j-archive.com/media/2011-05-26_DJ_25.jpg" target="_blank">Jimmy of the Clue Crew shows some plants on the monitor.</a>)  Most plant shoots have a tendency to grow towards the sun, which is called phototropism; if roots grew that way, they'd shrivel up & die, so they grow into the earth, displaying this other -ism'
geotropism