Macleaya cordata

China and Japan. White Plume Poppy. Tough as old boots, great at the back of a border, sun, any old thing… Tall.   Abbie Jury has a bit to say about it and she knows a thing ot gtwo about gardening! She notes that is has an attractive leaf a bit like cut-work embroidery, the feathery flowers are not much, always looking like they have finished in brown-gold. They have noticed that it runs… more like sprinting they note. If you have lush conditions like Taranaki, plant it in a nasty spot. I have found that in light shade or on rough pickings, it is demurer and more manageable. I have planted it against a hedge, it looks amazing and nothing else thrives.  Do not plant in rich soils in the sun, unless you make a bund of some sort. 

 https://jury.co.nz/tag/macleaya-cordata/   to see about romping away in the Jury paradise.