Find out what you need to know about plants:

Greensheets -- gardening facts search engine
http://www.geocities.com/RainForest/1329/greensheets.htm

Suite 101 Home & Garden
http://www.suite101.com/userfiles/79/gardening.html?wog2

About.com -- gardening guide
http://gardening.about.com/mbody.htm?COB=home&PID=2760&PM=70_902_T

Gardening Glossary
http://www.boldweb.com/greenweb/glossary.htm

Yahoo! gardening
http://dir.yahoo.com/Recreation/Home_and_Garden/Gardening/

Plants that can be poisonous
http://www.ag.usask.ca/cofa/departments/hort/hortinfo/misc/can_kill.html