The stigma does not become receptive until the sixth to seventh day. The primary umber is usually in the female stage of flowering when the lateral umbels are in the male stage. Both nectar and pollen are easily available and attractive to flies and hymenopterous insects. Because of the protandry, pollen must be transferred from pollen- producing flowers to receptive stigmas. The pollen is not windblown but must be transferred by insects.
Bees are the primary pollinators of caraway flowers.
Although there are no recommendations on the pollination of caraway, the flower type and the need for pollinating insects would indicate that where maximum commercial production of seed is desired the grower should provide an ample supply of bees to the field.