Cirsium rivulare ‘Trevor’s Blue Wonder’

A striking, upright perennial forming tall stems topped with clusters of rich violet-blue, thistle-like flowers. Its architectural form and unusual colouring create a strong vertical accent in the garden, while the finely divided foliage adds texture and movement to naturalistic and prairie-style planting.

Plant Details:
• Common name: Plume Thistle
• Position: Full sun to partial shade
• Height & spread: Approx. 120–150cm x 60cm
• Flowering: June – August
• Soil: Moist but well-drained, fertile soil; prefers moisture-retentive conditions
• Hardiness: Fully hardy in Ireland
• Pollinator friendly: ✔ Yes
• Something to note: A distinctive selection prized for its unusual blue-violet flower colour and strong, upright habit. Unlike many traditional thistles, it forms an elegant clump without spreading aggressively, making it particularly effective as a structural plant in wildlife gardens, mixed borders, and prairie-style schemes