Ageratum 'Blue Horizon'

Ageratum houstonianum 'Blue Horizon' Overview Uses: Annual flowering plant  Benefits: Easy to take care of. Produces lavender to purplish-blue flowers that typically start in June and last until frost.  USDA Hardiness Zones: 10 - 11 (Grown as an annual in colder zones) Sun: Full Life Cycle: Annual (perennial in zones 10 - 11) Mature Height: 30" Mature Width: 18" Bloom Season: Late spring through fall Summary Ageratum houstonianum 'Blue Horizon'—commonly known as Blue Horizon Floss Flower—is a medium size, frost-tender annual that's best known for its clusters of lovely, fluffy flowers which resemble asters. Flower production is typically constant from late-spring until mid-fall.  'Blue Horizon' is a taller than average cultivar of Ageratum houstonianum, making it especially well suited for producing flowers that are great for use in freshly cut floral arrangements.  Growing in a shapely mound, it produces larger flowers than traditional ageratums, which it supports via its strong, s