Ageratum houstonianum 'Blue Danube'
Floss Flower 'Blue Danube'
Ageratum is a group of herbaceous plants which are part of the Asteraceae family. It is a genus native to tropical and sub-tropical America. Specifically, Ageratum houstonianum is the most commonly grown species found in cultivation and is originally native to Guatemala, Belize and parts of Mexico. It has a neat mounding bushy habit, ovate green leaves and panicles of thread like flowers, coming in blues, purples, white or pink shades. It is an annual plant and typically flowers from early summer right through to autumn. Different varieties have different heights, with shorter forms often used in bedding arrangements, and taller varieties in cut flower arrangements. 'Blue Danube' is a large-flowered compact form with lavender blue flowers.
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Full sun
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Occasional watering
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A little frost hardy: 32F (0°C)
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Free draining and fertile
Common name
Floss Flower 'Blue Danube'
Latin name
Ageratum houstonianum 'Blue Danube'
type
Annual
family
Asteraceae
ph
5.0 - 8.5 Acid - Neutral
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Light
Full sun
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Frost
A little frost hardy: 32F (0°C)
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Soil
Free draining and fertile
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Water
Occasional watering
Plant & bloom calendar
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Best time to plant
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When the plant will bloom
full grown dimensions
0.20 M
0.20 M
Ageratum houstonianum 'Blue Danube'
Ageratum is a group of herbaceous plants which are part of the Asteraceae family. It is a genus native to tropical and sub-tropical America. Specifically, Ageratum houstonianum is the most commonly grown species found in cultivation and is originally native to Guatemala, Belize and parts of Mexico. It has a neat mounding bushy habit, ovate green leaves and panicles of thread like flowers, coming in blues, purples, white or pink shades. It is an annual plant and typically flowers from early summer right through to autumn. Different varieties have different heights, with shorter forms often used in bedding arrangements, and taller varieties in cut flower arrangements. 'Blue Danube' is a large-flowered compact form with lavender blue flowers.
Flowering Season
From Early Summer TO Late Autumn
They bloom from early summer to the first severe frosts.
Planting Outdoors
From Late Spring TO Early Summer
Plant container grown plants in a sunny sheltered spot in early summer.
Propagation by seed
From Early Spring TO Mid Spring
In early to mid-spring sow seeds under glass.