The red poppy is a flower of remembrance and also of sleep and forgetting in old symbolism. Dream books read it as rest, dreams and memories you hold or want to let fade.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.