Pycnosorus globosus (Billy Buttons) care involves full sun, well-draining soil (sandy or loamy), and moderate watering, especially in dry spells, though it's drought-tolerant once established. Key care includes deadheading spent flowers to encourage new blooms and light pruning in summer, with a harder cut-back to ground level in winter if needed for regrowth. They thrive in native gardens, rockeries, and pots, being hardy and low-maintenance.