1. The true saffron crocus ( Crocus sativus ) is another wonderful fall bloomer. 2. "Crocus sativus " thrives in the Mediterranean rusts, and corm rot pose other threats. 3. Saffron for kumkuma is made from the flower " Crocus sativus ", in the family Iridaceae. 4. Crocus sativus was likely introduced from Spain and from the Middle-East by pilgrims, merchants, and Knights.5. The domesticated saffron crocus, " Crocus sativus ", is an autumn-flowering perennial plant unknown in the wild. 6. Autumn crocus also refers to the true crocuses that bloom then, including Saffron crocus ( Crocus sativus ). 7. One of the traditional and most widespread Iranian spices is saffron, derived from the flower of " Crocus sativus ". 8. By planting saffron crocus ( Crocus sativus ), you can actually harvest the orange-red stigmas used in flavoring and in dye-making. 9. Unlike the bright, colorful crocuses that bloom in the spring, Crocus sativus blooms in the fall and is not very showy. 10. "C . cartwrightianus " is the presumed wild progenitor of the domesticated triploid " Crocus sativus " the saffron crocus.