Are petunia flowers edible?
Herein, are petunias poisonous?
The ASPCA makes it very clear that petunias are not toxic to dogs, cats or other animals, but their website contains a very lengthy list of other, equally pretty plants that are mildly or lethally toxic. For that reason, it's not a good idea to allow or encourage dogs to lunch on flowers.
Likewise, what flowers are edible for humans?
Edible flowers include citrus blossom, clover, daisies, dandelions, hibiscus, honeysuckle, lavender, lilac, mums, nasturtium, pansies, roses, sunflowers and violets, among others.
But one very important thing that you need to remember is that not every flower is edible. In fact, sampling some flowers can make you very, very sick. You also should NEVER use pesticides or other chemicals on any part of any plant that produces blossoms you plan to eat.