Centaurea 'Amethyst Dream' (Perennial Cornflower 'Amethyst Dream') is a standout perennial cornflower grown for its fringed, amethyst-toned blue flowers and neat, clump-forming habit. You will get the best bloom and the strongest stems in full sun, where plants typically reach about 18-24 inches tall and develop into a tidy mound that can slowly spread over time.

Plant it in average, well-drained soil and water regularly the first season to help it establish. After that, it handles drier periods well, especially once roots are settled. If your soil is lean or rocky, that is often fine; just avoid consistently soggy sites, which can shorten plant life and reduce vigor.

Deadhead after the main flush to keep the planting looking fresh and to encourage occasional follow-up bloom. Divide clumps every few years to refresh growth and to manage spread. Pair it with other sun-loving perennials in borders and cottage-style plantings for a long-lasting, pollinator-friendly display.

Specifications

• Cold hardiness zone: 3-8 (-40 degrees F) - Contact your local extension to confirm hardiness if you are in a fringe zone (we cannot guarantee hardiness in fringe zones)
• Light: Full sun
• Mature height: 18-24"
• Spread: 24-28"
• Tolerant of: Drought, Poor Soil
• Attracts: Butterflies
• Good for borders & edging: Yes

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Care