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.
Once the plant is established, buxus sempervirens will grow about 6-9 inches a year under reasonable growing conditions. In deep shade, very poor soil and very exposed sites, the growth rate is lower.or most box garden hedges, multiply the length of the hedge in metres by 5 to calculate the number of plants required. This corresponds to a spacing of 20cm (8 inches), and is suitable for are root and container grown plants up to 40cm tall when planted.