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Agapanthus Windsor Grey

Agapanthus Windsor grey
African Lily, Lily of the Nile

4,8/5
4 reviews
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Well-rooted, can't wait to see it grow!

julie, 16/08/2024

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This plant carries a 12 months recovery warranty

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Value-for-money
The Agapanthus is an exquisite plant that exudes a magnetic charm. Its giant umbels are white and blue, giving the impression of being powdered with silver flakes that sparkle beautifully in the sunlight. Each little flower blushes a delicate pink before withering. This variety of Agapanthus produces sturdy stems and is surrounded by light green, evergreen foliage. It is a hardy plant that can be grown in open ground in most areas, provided with winter protection.
Flower size
18 cm
Height at maturity
1.10 m
Spread at maturity
60 cm
Exposure
Sun
Hardiness
Hardy down to -9°C
Soil moisture
Dry soil, Moist soil
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Best planting time April
Recommended planting time March to May
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Flowering time August to September
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Description

The Agapanthus, also known as Agapanthus Windsor Grey, is a stunning perennial plant with an attractive charm. It has large umbels that can grow up to 18 cm (7.1 in) wide, comprising bluish-white flowers with a tinge of grey. The flowers look like they are sprinkled with silver glitter that sparkles when the sun shines. Each little flower turns slightly pink before it fades away. This Agapanthus variety has sturdy stems that grow on wide, light green, semi-evergreen foliage. It can withstand harsh weather conditions and be grown in the ground in most regions with winter protection.

 

This new hybrid agapanthus is a plant created by cross-breeding various species that originate from South Africa. It belongs to the lily family and has a bulbous shape. The plant is relatively hardy, and its foliage partially disappears in autumn. The 'Windsor Grey' variety is an exceptional form of this plant. It is first noticed for its vigorous habit and then for its grey umbels that brighten and come alive with iridescent reflections in the sun. The plant develops from a short rhizome with fleshy roots. It forms a tuft with a bushy habit, composed of broad, light green, semi-evergreen to deciduous ribbon-shaped leaves. When in bloom, it can reach a height of at least 1 m (3.3 ft) and a diameter of 60 cm (23.6 in). 

 

The plant blooms in the second half of summer when its robust and wide floral stems appear, crowned with spherical umbels containing 20 to 50 bell-shaped flowers. The colour of the flowers is somewhat indescribable, intermediate between milky white and grey. In the sunlight, iridescent pigments embedded in the flesh of the petals can be distinguished, making this colour particularly fascinating. 

 

This bulbous plant is hardy up to approximately -10°C, provided it is planted in well-drained soil and a sheltered position.

 

Agapanthus 'Windsor Grey' is a versatile plant used as a background or at the back of a border. It can be surrounded by low-growing perennials with grey foliage or used to edge pathways with creeping plants such as Ceraistes, Artemisias, Creeping Euonymus, or Aubrietas. It becomes more beautiful when paired with grasses like Panicum virgatum 'Dallas Blue' or Schizachyrium scoparium with stunning foliage. It can also be grown in large pots on the terrace, producing numerous floral stems and can be stored indoors during winter to protect it from heavy frosts. This plant can thrive in different settings, such as by the sea, in an English cottage, or a contemporary-style city garden. The flowers and leaves can be cut and placed in a vase, adding freshness and originality to the house.

Flowering

Flower colour white
Flowering time August to September
Inflorescence Umbel
Flower size 18 cm

Foliage

Foliage persistence Semi-evergreen
Foliage colour green

Plant habit

Height at maturity 1.10 m
Spread at maturity 60 cm
Growth rate slow

Botanical data

Genus

Agapanthus

Cultivar

Windsor grey

Family

Alliaceae - Liliaceae

Other common names

African Lily, Lily of the Nile

Origin

Cultivar or hybrid

Product reference81582

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Planting and care

To grow the 'Windsor Grey' Agapanthus successfully, it should be planted in a warm, south-facing location with full sun protection. The soil should be rich, moist, and well-drained to improve its hardiness. If the ground is heavy, you can mix pure gravel or coarse sand into the bottom of the planting hole. Ensure the base is buried under 10 cm (3.9 in) of soil to protect it from the cold. During the growth period, water the Agapanthus regularly, twice a week, but avoid watering it in winter. Protect the base of the plant by adding a 20 cm (7.9 in) thick layer of leaf mould covered with mesh to prevent wind damage. Snow provides excellent protection against excessive moisture and cold. If it is potted, keep it in an unheated room, away from severe frosts. When planting, make sure to plant it at a depth of 10 cm (3.9 in) in a mixture of leaf mould and compost. Once it is established, avoid disturbing the Agapanthus. In autumn, remove the faded leaves and cut back the spent flower stems to prevent the plant from exhausting itself in producing seeds.

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Planting period

Best planting time April
Recommended planting time March to May

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Border, Container
Hardiness Hardy down to -9°C (USDA zone 8b) Show map
Ease of cultivation Amateur
Planting density 3 per m2
Exposure Sun
Soil pH Neutral
Soil type Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Moist soil, rich, loamy and well-drained

Care

Pruning instructions Remove the faded leaves and cut back the spent flower stems to prevent the plant from exhausting itself in producing seeds.
Pruning Pruning recommended once a year
Pruning time August to September
Disease resistance Very good
Overwinter Can be left in the ground
4,8/5
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