Do not eat flowers picked from the side of the road. Once again, possible herbicide use eliminates these flowers as a possibility for use. Remove pistils and stamens from flowers before eating. Eat only the flower petals for most flowers. Different flavors occur in plants when grown in different locations because of soil types, fertilization, and culture.
Environmental conditions play a big role as well.
What has excellent flavor at one time may taste different at the end of the season or the next year. Introduce flowers into your diet in small quantities one species at a time. Too much of a good thing may cause problems for your digestive system. If you have allergies, introduce edible flowers gradually, as they may aggravate some allergies. Enjoy the different flavors and colors that edible flowers add to many foods.