‘Rozanne’ carries violet-blue flowers with white centres over a spreading mound of green foliage. Its long flowering season makes it useful along border edges and in generous containers, where stems can weave among neighbouring plants.

Why we like it

• A long succession of violet-blue flowers.
• Spreading growth helps cover bare soil.
• A versatile choice for informal borders.

What to know

• Grow in sun or partial shade in fertile, well-drained soil.
• Water regularly during the first growing season; avoid prolonged waterlogging.
• Mulch around the clump in spring, keeping the crown clear.
• Cut back tired stems in midsummer and water to encourage a fresh flush.
• Divide established, congested clumps in spring or autumn.

Flower colour

Violet-blue with white centres

Flowering months

May, June, July, August, September, October.

Height and Spread

Approximate mature height: 45 cm. Spread: 5090 cm.