Petunias are native to South America and mainly produced in Argentina.
Other plants in the Petunia family include gooseberries, tobacco, chili peppers, tomatoes, deadly nightshades(which is a toxic berry plant) and potatoes.
The word Petunia originated from the French petun which means ‘tobacco’.
Petunias attract moths and hummingbirds.
The Grandiflora is the largest Petunia, it’s flower get as large as 4 inches in diameter.
The official flower of Frankfort, Illinois is the Petunia.
Resources used: http://en.wikipedia.org/wiki/Petunia, http://www.thriftyfun.com/tf30319870.tip.html, http://www.buzzle.com/articles/petunia-flowers.html, http://petuniaflowers.net, http://www.villageoffrankfort.com