To keep snapdragons blooming for several years, allow the flower stalks to remain after they finish blooming. Just cut them back to where a set of leaves is growing and they will rebloom again ...

One popular flower that provides weeks of color is the snapdragon (Antirrhinum majus). Although often grown as an annual, snapdragons are perennial in warmer zones, and sometimes reseed themselves ...

The aroma of a flower may contain as few as seven to ten different oils, as in snapdragon or petunia, or as many as 100 different chemicals, as is the case with orchids. Dudareva has been studying ...