Sempervivum globiferum ssp. allionii

• Spiky-looking rosette of narrow, pointed leaves that close inward to turn the rosette into a ball or "roller"
• Lime green leaves lighten to yellow in summer sun then flush burgundy in winter
• Prolific self-propagator that produces lots of new offsets that can roll away to re-root
• Easy rock garden plant that forms dense mounds, even in full sun, drought, and temps down to -20F

  
  

Hardy to -20°F (Zone 5)