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The Plant Guide

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Mountain bluet

Centaurea montana

sen-TOR-ee-ah mon-TAN-ah Audio

Mountain bluet is an excellent choice for the border or rock garden. Blue flowers open from attractive buds in late spring to midsummer, then leave behind a mass of vigorous, silvery-green woolly foliage and woolly stems.

Noteworthy CharacteristicsBlue, spidery flowers. Self-seeds.

CareGrow in moist soil in sun or partial shade. Easy to divide in fall if it begins to crowd its neighbors. Self-seeds readily. May need staking.

PropagationDivide in fall.

ProblemsWhite mold, rust, downy and powdery mildew, thread blight, and Southern blight can occur.

  • Genus : Centaurea
  • Plant Height : 1 to 3 feet
  • Plant Width : 1 to 3 feet
  • Zones : 3, 4, 5, 6, 7, 8, 9
  • Bloom Time : Early Summer, Late Spring, Spring, Summer
  • Light : Full Sun to Partial Shade
  • Moisture : Medium Moisture
  • Maintenance : Moderate
  • Plant Type : Perennials
  • Characteristics : Self Seeds
  • Plant Seasonal Interest : Spring Interest

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