Saffron is the world’s most expensive spice. It has beautiful golden-red threads and a pound of dried saffron goes for about $5,000. It makes sense to grow your own saffron. It is a pretty easy plant to grow, it has beautiful flowers, and the plant multiplies each year so you will get more and more saffron as the years go on. The bulbs, otherwise known as corms, are planted in late spring, 4–6 in deep in well-prepared, well-drained soil, in full sun or only partially shaded sites. Saffron can be grown successfully in zones 6-9. It originally grew in a dry Mediterranean climate, so if you have a colder, wetter climate, you will simply need to take more precautions. Keep reading the tutorial in the source.