the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. 2. Chemistry.
The cultivated saffron (saffron crocus C. sativus) flowers in the autumn and comes up every year, so it is known as a perennial plant. It does not grow wild, and is now a triploid form of the eastern Mediterranean plant called Crocus cartwrightianus. It is thought that C. cartwrightianus came from Crete.he cultivated saffron (saffron crocus C. sativus) flowers in the autumn and comes up every year, so it is known as a perennial plant. It does not grow wild, and is now a triploid form of the eastern Mediterranean plant called Crocus cartwrightianus. It is thought that C. cartwrightianus came from Crete.
Save. Saffron crocus is a highly attractive herb which produces lavender or purple flowers in the fall after other plants have declined. That is reason enough to grow the herb, but perhaps an ever better reason is that it is the world's most expensive spice.mprove the soil where you'll grow the saffron with some organic material. Saffron thrives in rich soil, so mix in some compost or other organic material, such as leaves or grass clippings, into the soil. Plant the croms in the spring or fall.