In article , Grenou
iamhere@mostofthetime.? writes
I once bought the seeds from Thompson & Morgan! Took a while to get rid of
the plants when I realised how invasive they were.
But they weren't a problem.
Our soil is very sandy, so it's easy to pull the plants up before they set
seed.
I kept the white ones for a while.
Haven't seen one in our garden for years, so must have done a good job :-)
You're the first person I've known who's bought it, but when I was a
child our parents collected some seeds from the grounds of a stately
home and sowed them in our garden. Like you we realised our mistake
after a couple of years and had to pull them all out.
Tomorrow I'll be with a gang of birdwatchers trying to remove it from
the banks of the River Loddon. It's rather late in the season, I think
some of it will have ripened seeds already.
--
Sue ]