Agapanthus Blue Umbrella seeds - African lily
Agapanthus Blue Umbrella seeds - African lily
Agapanthus umbellatus Blue Umbrella
African Lily, Lily of the Nile
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Description
Agapanthus umbellatus 'Blue Umbrella' is a spectacular perennial appreciated for its large umbels of deep blue flowers. Interesting for adding a touch of elegance and colour to the garden, it can be used in large borders, flower beds, or in large pots. Its evergreen foliage, combined with its magnificent summer flowering, makes it a plant of choice for creating a focal point.
This variety of Agapanthus 'Blue Umbrella' belongs to the Amaryllidaceae family. Agapanthus umbellatus (africanus) is a botanical species native to South Africa, where it grows in sunny meadows on well-drained soils. 'Blue Umbrella' forms dense clumps of long, ribbon-like, arching leaves, about 2 to 3 cm wide, dark green, which persist through winter in mild climates. Its flowers, grouped in large spherical umbels, 20 to 25 cm in diameter, appear at the top of rigid stems that can reach 1 to 1.5 m in height. Each umbel can contain up to 20 to 30 tubular flowers, of an intense blue, measuring about 5 cm long. Flowering occurs from July to September, depending on the climate. 'Blue Umbrella' is a relatively slow-growing plant, taking a few years to reach its mature size. But once established, it offers increasingly prolific flowering year after year.
Agapanthus 'Blue Umbrella' structures flower beds or borders, adding a pleasant exotic touch. It pairs beautifully with plants like Miscanthus, Echinaceas for a colour contrast, or even Gauras. In pots, it can be combined with dwarf Agapanthuses like 'Ever Sapphire' or white varieties like 'Albus', for a winning blue-white duo. For a mix of textures and heights, it can also be accompanied by verbena bonariensis or Kniphofia 'Royal Standard'.
Flowering
Foliage
Plant habit
Botanical data
Agapanthus
umbellatus
Blue Umbrella
Amaryllidaceae
African Lily, Lily of the Nile
Agapanthus africanus Blue Umbrella
South Africa
Planting and care
The seeds of Agapanthus 'Blue Umbrella' should be sown between February and April for successful germination. Start by filling a seed tray or small pots with a fine, well-draining compost. Sow the seeds on the surface, then lightly cover them with a thin layer of compost or vermiculite, around 2 to 3 mm. Water gently to moisten the substrate without saturating it. Place the tray in a bright location, at a temperature of 15 to 20°C, while keeping the substrate slightly moist. Germination can take 3 to 8 weeks, depending on the growing conditions. Once the seedlings are sturdy enough, transplant them into individual pots and gradually acclimatise them outdoors before planting them in the ground after the last frost.
Cultivation:
Agapanthus 'Blue Umbrella' prefers a sunny exposure, although it can tolerate some partial shade. It thrives in well-draining soil, whether sandy, loamy, or clay, with a neutral to slightly acidic or alkaline pH. Ensure the soil does not become waterlogged, as excess moisture can lead to root rot. This plant is drought-resistant once established but will benefit from regular watering during dry periods, especially in summer.
In cold climates, it is a good idea to grow Agapanthus in a pot so it can be brought indoors in winter, as it cannot withstand temperatures below -5°C. In milder regions, it can remain in the ground year-round, but a protective mulch is advisable to protect the roots during winter. After flowering, remove faded flower stems to promote a new bloom the following year. Divide clumps every three to four years to maintain abundant flowering and prevent root overcrowding.
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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