By Sarah_lou
Northamptonshire,
United Kingdom 
I bought these a few years ago and would like some more but do not now know what they are called, can anyone help please
Thanks
15 Sep, 2021
Answers
That is what I thunked too!
15 Sep, 2021
glad we both thunked the same.
15 Sep, 2021
Probably actually a hybrid, but near as no matter...we's all thunking in tune!
Hmm. Sounds almost like the Blue Man Group on their poly pipes? ;)
16 Sep, 2021
first thought is that it is a variety of Lobelia cardinalis and they like dampish soil in good light.
https://www.rhs.org.uk/plants/10394/lobelia-cardinalis/details
15 Sep, 2021