I'm interested in growing and cooking with edible flowers and wonder: Is it safe to eat all varieties of the plants you have mentioned on your site ( i.e., tulips, pansies, marigolds, carnations, chamomile, chrysanthemums, dandelions, daylilies, gardenias, geraniums, gladiolus, lavenders, lilies, nasturtiums, pansies, peonies, primroses, roses, squash blossoms, violets and yucca blossoms) or are some varieties of these flowers poisonous? Also, is there a supplier of edible flower seeds/bulbs that you could recommend?
Since different people react in different ways to various allergens, I cannot tell you that it is safe to eat all varieties of the plants listed. Since you seem to be serious in your desire to learn about, grow and cook with edible flowers, my recommendation is to visit your library or local book store and find a good book to refer to. Some titles that you might look for include:
Cooking from the Gourmet's Garden : Edible Ornamentals, Herbs, and Flowers -
Coralie Castle, Robert Kourik / Paperback /Published 1998
Edible Flowers : A Kitchen Companion -Kitty Morse / Hardcover / Published 1995
Edible Flowers : Desserts & Drinks - Cathy Wilkinson Barash / Paperback / Published 1997
Edible Flowers : From Garden to Palate - Cathy Wilkinson Barash / Paperback / Published 1995
Taylor's Pocket Guide to Herbs and Edible Flowers - Norman Taylor, Ann Reilly / Paperback /
Published 1990
Cooking With Edible Flowers & Herbs - Sinclair Philip / VHS Tape / Published 1990
Cornell Book of Herbs and Edible Flowers - MacKin / Paperback / Published 1993
Edible Flowers : A Recipe Collection - Marilyn Lande / Paperback / Published 1994
Flights of Fancy : A Cookbook of Fanciful Recipes for Artful Living : Edible Flowers & Herb
Recipes Paperback / Published 1994
Good Enough to Eat-Growing and Cooking Edible Flowers - Jekka McVicar / Hardcover
The Beautiful Food Garden : Creative Landscaping With Vegetables, Herbs, Fruits & Flowers
Kate Rogers Gessert / Published 1987
Edible Flowers - Claire Clifton / Published 1984