It is tempting for a gardener to pick something edible from the garden (e.g. a cherry tomato), and immediately pop it into his or her mouth. However, it is best not to do this.
One never knows where young children from the neighborhood may be lurking, even if there are none currently residing in the home, and eating things right off a plant sets a dangerous precedent. There are lots of poisonous plants out there. In her book Wicked Plants (Algonquin Books of Chapel Hill, 2009), author Amy Stewart makes readers shudder at the large number of them.
However, there are many plants that produce edible flowers and that are safe to eat if they are grown without the use of pesticides. Here are a few of them:
Although I love to see a plate garnished with flowers, I am less interested in chomping down on pretty petals than many people are these days. It is hard to admire the visual charms of a flower while one is devouring it!
For a list of edible flowers (and some excellent recipes) consult The Sage Cottage: Herb Garden Cookbook by Dorry Baird Norris published by the Globe Pequot Press, Old Saybrook, Connecticut, 1991, (Page 70).