150 (250)cm, broad, grayish green stems topped with a huge rosette of up to 50cm long, broadly serrated, glossy, mid green leaves and a terminal, lax branching inflorescence of very large, bright yellow flowers. Native of rich soils in partially shaded to sunny spots, especially in central Madeira. For any rich, rocky, well drained soil. Partial shade in summer, sunnier in winter at a minimum of some 10°C. One of the most impressive and ornamental Sonchus species. VII-IX.