Natural observation, news articles I made not of, stuff I hear on the radio, all over really. I should take care to site sources, but I'm usually just in passing when I pic up a piece of information so not in the mode of writing down sources.
I posted a couple of new ones last night, feel free to check them out when you get a chance.
Just a farmer/gardener with a message board! homegrowngoodness.blogspot.com Average last frost May 10, First Frost October 15'th. Hot and Humid Summers. Full sun plots, rolling hills, plots planted on southern and south western facing slopes. Greenhouses kept at 70 Degrees F.