Ageratum Blue Danube F1
Ageratum Blue Danube F1
Ageratum x houstonianum Blue Danube F1 Hybrid
Flossflower, Bluemink, Blueweed, Pussy foot, Mexican paintbrush
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This plant carries a 6 months recovery warranty
More information
We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
Ageratum 'Blue Danube' F1 is a vigorous annual hybrid variety that displays large, soft, fluffy clusters of lavender blue flowers all summer long. This RHS AGM winner is particularly weather resistant and coveted by butterflies. It forms small dense clumps that are perfect at the front of beds, in borders and pots. Easy to grow in a sunny location, in cool soil.
Ageratum 'Blue Danube' F1 is bred from Ageratum houstonianum, a perennial often grown as an annual that belongs to the Asteraceae family and is native to Central America and the West Indies. It forms bushy, rounded cushions that measure 25 cm high and 20 cm wide. The abundant, well-branched, pubescent stems stand upright and spread out gracefully. The dark bluish-green leaves, which are also pubescent, are ovate to triangular with serrated margins. From April until early autumn, this variety will bloom continuously providing it is regularly deadheaded. The foliage is smothered in soft lavender-blue flowerheads, grouped in pompom-like clusters.
Mexican Ageratums are pollinator-friendly plants that are popular in urban landscaping and gardens. Their generous blooms and bright colours combine well with many other low-growing bedding plants such as marigolds, calendulas and red sage. Create magnificent pastel-coloured carpets at the forefront of beds by matching them with pink begonias, busy Lizzies or fragrant alyssums. Ageratums are also very pretty grown alongside fuchsias in pots indoors, on the patio or balcony.
Flowering
Foliage
Plant habit
Botanical data
Ageratum
x houstonianum
Blue Danube F1 Hybrid
Asteraceae
Flossflower, Bluemink, Blueweed, Pussy foot, Mexican paintbrush
Cultivar or hybrid
Planting and care
Sow in moist, free-draining sowing mix. Do not cover the seeds as they need sufficient light to germinate. To speed up the process, grow in a propagator or place the seed tray inside a polyethylene bag until germination (7-21 days at a temperature of 20-30°C).
When the plants are strong enough to handle, transplant them into pots and move them to a cooler place until they are ready to taken outdoors. When the young plants are well established and all risk of frost is over, harden them off for a few days before planting them in their final location. Make sure to leave about 30 cm between each plant.
Sowing period
Intended location
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
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