Greek oregano offers the best, most pungently flavoured oregano leaves for cooking. Plants are very hardy when established and impart a wonderful wild mountain aroma in the garden with their tiny white or pink flowers. Bees love oregano when it is in bloom. Oregano is one of the best herbs for drying because it maintains a strong flavour for months after harvest. Pick and dry whole stalks or whole plants - hang them upside down in an airy place out of direct sunlight. Once the plants are completely dry, they can be stored in open plastic bags. Otherwise, pull off the leaves and store them in sealed jars.