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Wednesday, 2 March 2011

The new knotweed: Warning over more alien plants set to wreak havoc

A report today names 92 non-native plants sold by garden centres and pond specialists that are in danger of spreading into the wild. The charity Plantlife says many of the species could become the next Japanese knotweeds – alien plants choking the countryside after being set loose by careless gardeners.
Plantlife is calling for urgent action to curb the spread of the invaders – and for two plants to be banned from sale.

Read more:. http://www.dailymail.co.uk/sciencetech/article-1361668/The-new-knotweed-Warning-alien-plants-set-wreak-havoc.html#ixzz1FTBNCDWs


Steve Blacksmith said...

In Calderdale there is a rash of small to medium cherry laurel (Prunus laurocerasus) in some woods. This gets huge, bigger than Rhododendron ponticum, and spreads by layering as well as seed. I've pulled many up in Bankhouse Wood.

Foxes spread it by eating the fruit. I have seen their scats full of the laurel seeds.

Philip said...

Cherry Laurel also poisons the ground nearby and should not be burned when cut, as it gives off cyanide gas.