yep, my mom showed me that when i was a kid. i don't know how much real nutritional value you get from the petals but they're tasty in a salad or just off the plant. i personally like the tubers the most. i don't think there as nutritious as rose petals and rose hips but i think there thicker and more filling. rose hips have a crapload of vitamin c to. i don't know if day Lillie's do or not.