• lilac
• hibiscus
• nasturtium
• dandelion flowers and leaves eat
• sunflower flower, bud is steamed like an artichoke
• lavender
• stigma of saffron flower
• real violet

(MORE HERE: http://thesecretyumiverse.wonderhowto.com/how-to/10-eat-me-flowers-for-haute-cuisine-0126811/)