General Information: Knotgrass is an annual weed which is rarely found on well
maintained lawns but it can often be found where soil compaction is a problem. This weed can grow
about 50cm high but it mainly grows prostate smothering the surface.Leaf: The
small knotgrass leaves are lance shaped with a short stalk.
Flower: The flowers of knotgrass are bourn between the leaf and stem. They can
be seen from July - October and are white or pink in colour.
Preferred habitat: Knotgrass prefers weak areas of the lawn that have become
Control: As knotweed prefers compacted soils, relieving the compaction by
aerating will help discourage this weed. Hand weeding is practical for any isolated plants. For a
serious problem use a selective weed killer containing dicamba or alternatively a product that
contains fluroxypyr & clopyralid like 'Verdone Extra', a repeat application is very rarely
needed as Knotgrass is an easy weed to control.
|Please click to enlarge the Knotgrass image
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