How to Propagate broad-leaved dock?
Spreads readily by seed; root sections also regrow

broad-leaved dock · Rumex obtusifolius
Also known as: bitter dock; broad dock; keddle dock; kettle dock; batter dock; butter dock
Grows naturally in waste and cultivated land, grassland and marshy places and can become a persistent garden weed
Spreads readily by seed; root sections also regrow