A single tuber from Dr Jamie Compton has staggered visitors to the nursery with its stature (in the open ground, mulched but not otherwise protected and surviving -15ºC in past winters.) Fully 8' tall and 6' broad but not "dense" as the characteristic frothy dissected foliage is not heavy, with vibrant scattered flowers in rich orange all through the late summer and autumn. Very young plants do not show up the dissected leaf as well as older plants.
Tender. Store dry till March, then pot up and grow with warmth to plant out in late May. Their growth is rapid in the lengthening days of early summer and they need rich soil, lots of sun and reasonable moisture to establish. Later in the summer these established plants seem much more drought tolerant.