Nodding lantern-shaped flowers unfurl into flattened lemon-yellow stars, their pointed tepals sweeping back dramatically. The vibrant blooms exude a sweet, coconut scent as they dangle from graceful twisting stems layered with opposite green leaflets. Fluffy silver seed heads prolong seasonal interest after the petals fall. Though typically reaching modest heights, 'Helios' can thrive in suitably large patio containers with free-draining soil or peat-free compost with added grit, and looks striking as a backdrop to purple and blue flowering foreground plants.