Close up of sweet flag flower.

Control Sweetflag

Many people ask how to get rid of sweetflag. The following options can be considered for how to control sweetflag.


Manual/Mechanical Control:

If you are considering how to remove sweetflag, physically cutting this plant and digging up the roots can be a somewhat effective method of control. However, physical control can be difficult. Sweetflag can re-grow from any roots remaining in the area.


Herbicide Control:

There is an option for how to kill sweetflag that offer some control.

  1. Dibrox (for ponds or lakes) – liquid that is diluted with water and sprayed over the plants, fast acting.


Treatment Tips:

When treating sweetflag,

  • Treat when the plants are established and actively growing.
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