This plant can a shrub up to 4 metres tall according to Stace but in this piece of rough ground this introduced plant was a good deal taller than that. According to BSBI most reports of this escape are to be found in the north east of England with just a few scattered elsewhere.

Rough ground near St Helens 18th July 2005

Added on November 21st 2005, updated 27th January 2012