How many saffron crocus does it take to produce one pound of saffron?

It takes approximately 150,000 to 200,000 saffron crocus flowers to produce one pound of saffron. Each flower produces only three red stigma threads, which are the actual saffron spice. The labor-intensive process of hand-harvesting the delicate flowers contributes to saffron's status as one of the most expensive spices in the world.