Silverweed (Potentilla anserina)

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General Information: Silverweed, often mistaken for Creeping Cinquefoil (same family) is a perennial weed and is a common weed on neglected lawns and turf in the UK. It is rarely a problem on well maintained lawns. It spreads by creeping stems which root at intervals.

Leaf: Silverweed leaves are a silver colour on the underside of the leaf hence the name. Leaves are similar to those of the creeping cinquefoil, the difference being (aside from the silver underside) silverweed leaves are of a 'pinnate' structure, meaning that they are arranged on opposite sides of the stalks. Each silverweed leaf contains 6 - 14 toothed leaflets, whereas cinquefoil has only 5 leaflets.

Flower: Silverweed flowers are yellow and are visible from May to August, producing 5 petals.

Preferred habitat: Silverweed can grow in most soil conditions but is very is common on neglected lawns.

Control: The treatment for this weed is pretty much the same as Creeping Cinquefoil. Regular raking or light scarifying will help weaken silver. For a serious problem use a selective weed killer containing Dicamba or Mecoprop or alternatively a modern mixture such as fluroxypyr & clopyralid such as 'Verdone Extra', a repeat application about 6 weeks later will most likely be needed.

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