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HomeWeed Guide › Perennial Weeds Broad Leaf Dock

Broad Leaf Dock

Perennial weed identification: Broad leaf Dock
The Dock is a tough to eradicate perennial weed and can be easily identified by its large green leaves and it can grow to about 18 inches tall. The stems of some of the lowers leaves can be red in colour. These large leaves block out light and water from your wanted plants so early control is important.

The flowers which bloom from June to September are green and turn red as they mature.

Broad Leaf Dock is actually slightly poisonous and is notified as an “Injurious weed” in the UK Weeds Act 1959 as its white milky sap can cause mild dermatitis. It has been know that livestock can become ill if they feed on it. Getting rid of Dock can be very difficult as the tap root can grow as deep as 5 feet!

The recommended products for this weed are:

Roundup Ready to Use or Roundup GC Liquid Concentrate


3 simple steps

  1. Measure the area you need to cover Use our quick and easy to use size calculator
  2. Watch our easy to follow video tutorials View our video tutorial library
  3. Buy the right Roundup for you Select your dispenser and purchase here

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