The most useful advice was given to me by Dr. Fredric Frye, a noted herpetology veterinarian. "Feed iguanas an adequate diet consisting of high-quality, high-calcium, low-phosphorus greens such as collard, mustard, turnip, and dandelion greens, broccoli, bok choy, leaves, plus some fresh ripe fruits and samll amounts of firm tofu bean curd, cooked unseasoned wheat pasta, and a little hard-cooked egg white (no yolk)." I have added to this diet over the years with small amounts peaches, pears, bananas, strawberries and blueberries. After doing research in Costa Rica I found that native flowers and at times plaintan bananas were eaten. So you may try Rose, Carnation and Hibiscus petals.