Almanac Planting Co Ageratum
Best reliable annual for gardeners seeking vibrant and consistent blue borders.
This tall, upright variety fills vertical gaps in the garden with cloud-like clusters of lavender-blue blooms. It offers consistent color from late spring through the first frost, making it an ideal choice for cutting gardens or adding soft texture to sunny borders.
$9.95
Who it's for
- Home gardeners who enjoy creating fresh indoor floral displays
- Landscapers seeking consistent color throughout the entire growing season
- Eco-conscious gardeners looking to support local pollinator populations
Who should skip it
- Small-space gardeners preferring low-maintenance, self-supporting border plants
- Growers in humid climates without adequate garden airflow
- Impatient planters wanting immediate visual impact in early spring
Performance breakdown
Cut flower longevity
Sturdy stems and consistent blooms make this a premier floral arrangement filler.
Bloom duration
Reliable, steady flowering persists from late spring until the first frost.
Vertical garden impact
Upright growth habit adds essential height and structure to mid-border displays.
Ease of cultivation
Thrives in full sun with minimal fuss for most home gardeners.
Texture versatility
Fluffy clusters provide a soft, cloud-like contrast to sharper garden foliage.
Landscape pairing potential
Neutral lavender-blue tones blend seamlessly with most warm-season annual color palettes.
Key Specs
Species
Ageratum houstonianum
Variety
Blue Horizon
Life Cycle
Annual
Mature Height
24-30 inches
Mature Width
12-18 inches
Bloom Season
Late Spring through Fall
Light Requirements
Full Sun to Partial Shade
Pot Diameter
4 inches
Growth Habit
Upright, Mounding
Know before you buy
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