'Blue Danube' ageratum (Ageratum houstonianum 'Blue Danube') a-jer-AY-tum hoos-tone-ee-AY-num Genus:  Ageratum

This early, compact bloomer grows to only about 6 or 7 inches tall. With its icy blue-purple flowers, it works well when planted tightly along the foreground of a bed. Its color blends easily with most other hues and textures. -Julia Jones, Designing with annueals, Fine Gardening issue #120

Care: 

Provide full sun and moist, well-drained soil. Deadhead regularly.

Propagation: 

Sow seed in spring at 70 to 75° F. Cover only lightly.

Overview

Height 6 in. to 12 in. Spread 6 in. to 12 in. Growth Habit Clumps Growth Pace Fast Grower Light Full Sun Only Moisture Medium Moisture Maintenance Low Characteristics Attracts Butterflies, Showy Flowers Bloom Time Early Fall, Late Summer, Summer Flower Color Blue Uses Beds and Borders, Container Style Formal Garden Seasonal Interest Summer Interest Type Annuals