This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.

• Position: full sun or partial shade
• Soil: fertile, well-drained soil
• Rate of growth: fast-growing
• Flowering period: June to August
• Hardiness: fully hardy
  
  An abundance of semi-double, saucer-shaped, vibrant purple flowers with blue-black stamens appear throughout the summer above the mounds of drought-tolerant, deep bronze/purple foliage that lightens to dark green. Equally happy in large patio displays, the upright ‘Stormcloud’ will brood nicely when underplanting taller roses, or combined with other strong growers towards the back of the border.
  
  
• Garden care: In midsummer rejuvenate plants that are beginning to look jaded, by removing old flowered stems and leaves. Once established, lift and divide large clumps in spring.