An invasive weed that councils spend thousands to eradicate has been developed into a delicacy at a top Dublin restaurant.

The Japanese knotweed plant grows in the wild in Ireland, it spreads fast, and can even damage buildings.

This bad boy is making headlines today. Japanese Knotweed is your days numbered #eatheinvaders pic.twitter.com/ZhAvOjhB1z

— Heron & Grey (@heronandgrey) June 21, 2016

Helen Vaughan reports.