It's Weld ... Reseda luteola
This one has grown to a little more than 2 metres high and is now in flower.
The flower spikes bear insignificant flowers but it is a magnificent plant all the same .....
|Weld ... Reseda luteola|
It was grown commercially on a large scale in Kent, Essex and Yorkshire until recent times, but it took 3 - 6 pounds of weld to dye 1 pound of cloth and gave way to more efficient chemical dyes, becoming a plant of wasteland, field edges, walls and limestone quarries.
|Weld flower spikes|
|Weld ... lots of smaller flower spikes on the lower branches|