WILD AGERATUM, HARDY AGERATUM.

FAMILY: Asteraceae | GENUS: CONOCLINIUM coelestinum

TYPE
  • Perennials
SUN EXPOSURE
  • Partial Shade
WATER
  • Regular Water
PLANTING ZONES
  • US (Upper South) / Zone 6
  • MS (Middle South) / Zone 7
  • LS (Lower South) / Zone 8
  • CS (Coastal South) / Zone 9
  • TS (Tropical South) / Zone 10
  • TS (Tropical South) / Zone 11

Plant Details

Native to the West Indies, and grows from New Jersey to Missouri, south to Florida and Texas. Reaches 3 ft. tall and 23 ft. wide, with freely branching stems set with pairs of toothed, dark green, 4-in. leaves. From summer until frost, bears broad clusters of fluffy blue flowers that exactly resemble those of floss flower (Ageratum). Vigorous and freely spreading; invasive in fertile soil. Needs regular water but will not thrive in soggy soil in winter. Attracts bees. Late to appear in spring. Selections include 1- to 2-ft.-tall 'Album', with pure white flowers; 2-ft. 'Cori', bearing exceptionally clear blue blossoms, later blooming than the species; and compact 'Wayside Form', to just 15 in.

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