Lysimachia ciliata 'Firecracker'
The chocolate coloured foliage of this tall plant makes a good contrast with its numerous, delicate, yellow flowers and the more blousy inhabitants of the border.
As a counterpoint to the extroverts it's a good choice but don't be afraid to control its spread by pulling out unwanted clumps.
It will thrive in a moist herbaceous border or bog garden forming compact colonies which spread by underground rhizomes. Although a spreader it is less invasive and more easily controlled than many loosestrife.
Not very fussed about location as long as it is planted in soil that does not dry out in summer. We've found that it will tolerate quite a wide range of conditions even underneath trees in very poor and heavy clay.
Photo: Blackstem Plants
Moist but well-drained
Full sun, partial shade