Why eat hemp leaves at Dragon Boat Festival?

It is an old tradition to eat hemp leaves at the Dragon Boat Festival. Because the flowering period of hemp leaves is in May-June every year, and the fruiting period is in July-August. It is a good time to eat hemp leaves around the Dragon Boat Festival. Now few people use hemp rope, but the hemp leaf to do Lailai flourished, the most expensive vegetables throughout the year is hemp leaf. Hemp leaf is in the red hemp is still very small when it is on the top of the leaf off to eat, so this red hemp never grow up, also can not do the rope, but on the table hemp leaf is a rare delicacy, hemp leaf to water once to remove astringent flavor, and then brought to stir-fry, a little bit of salty, send porridge is no longer appropriate. And hemp leaves also have a certain effect on improving constipation, is a good ingredient into the early summer