This is a clump of nasturtiums that we grew from seeds we bought in Holland several years ago. It is finally blooming wildly. I harvested 18 flowers from this clump yesterday to eat with The Herbal Husband's guacamole. Delicious! Remember you can eat both leaves and flowers that give a salad a peppery taste. This flower and variegated leaf below is a variety called 'Alaska'. A book called Edible Flowers: From Garden to Palate by Cathy Wilkinson Barash is my favorite book on edible flowers. You also need to remember that not all flowers are edible and Ms. Barash addresses both edible and non-edible flowers in her book. That's why it's my favorite. You can find it at Book Finder or favorite used book search engine.