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Agapanthus hybridus Vallée de la Sarthe

Agapanthus x hybridus Vallée de la Sarthe
African Lily, Lily of the Nile

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An Agapanthus that offers in summer large umbels of pure white flowers emerging from a beautiful clump of bright green ribbon-shaped leaves that persist in winter. Ideal in a white garden, in a pot or in the ground, it will create elegant borders or very flowery pots. Semi-hardy (-7 °C), it thrives well by the seaside. To be grown in the sun, in a good rich and well-drained garden soil.
Flower size
18 cm
Height at maturity
85 cm
Spread at maturity
40 cm
Exposure
Sun
Hardiness
Hardy down to -6°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 June to August
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Description

Agapanthus 'Vallée de la Sarthe' is adorned in summer with large umbels of pure white flowers, very bright. They emerge from a beautiful tuft of vibrant green ribbon-like leaves that remain decorative in winter. Ideal in a white garden, in a pot or in the ground, it will create elegant borders or very flowery pots. Like all evergreen Agapanthus, this variety is not very hardy, but particularly suited to the Atlantic coast or the Mediterranean coast. And its flowers can be used to create beautiful bouquets.

Agapanthus are plants of the lily family originating from South Africa. Several species have been extensively hybridized by horticulturists in search of new colours, more compact and hardier plants, better adapted to our climates. The 'Vallée de la Sarthe' cultivar was selected by P. Turc in Anjou, France. This variety is named after the Sarthe River, which flows into the Loire near Angers. This perennial plant develops and multiplies rapidly from a stump with fleshy rhizomes, forming over time a dense tuft of linear foliage, of a vibrant and shiny green, about 40cm (16in) in all directions. Flowering, abundant, takes place between late June and late August depending on the climate. Numerous cylindrical flowering stems about 80-90cm (32-35in) tall emerge from the foliage tuft. They bear at their tip hemispherical umbels 15-20cm (6-8in) in diameter, composed of numerous campanulate flowers in the shape of flared trumpets. Each flower is composed of 6 petals fused into a tube at the base, pure white in colour. The shiny and vibrant green foliage of this variety persists in winter. 

Agapanthus 'Vallée de la Sarthe' stands out in the garden or on the terrace, especially in a contemporary or exotic setting. This new variety will easily adapt in our mild regions, especially if its stump is protected by a thick mulch in winter. Whether in a mass planting, as a border, in a large rockery, in a pot or planter, Agapanthus is suitable for a wide range of uses. It is particularly suited to coastal climates. 'Vallée de la Sarthe' is very beautiful, associated with other blue, mauve or white varieties in a minimalist setting. It is also very decorative in exotic-themed plantings with DianellaKniphofiasHemerocallisgrasses and Cannas.

Agapanthus hybridus Vallée de la Sarthe in pictures

Agapanthus hybridus Vallée de la Sarthe (Flowering) Flowering
Agapanthus hybridus Vallée de la Sarthe (Foliage) Foliage

Flowering

Flower colour white
Flowering time June to August
Inflorescence Umbel
Flower size 18 cm
Good for cut flowers Cut flower blooms
Flowering description Large umbels of pure white.

Foliage

Foliage persistence Deciduous
Foliage colour green
Foliage description Evergreen.

Plant habit

Height at maturity 85 cm
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Agapanthus

Species

x hybridus

Cultivar

Vallée de la Sarthe

Family

Alliaceae - Liliaceae

Other common names

African Lily, Lily of the Nile

Origin

Cultivar or hybrid

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Planting and care

Plant the stumps of 'Vallée de la Sarthe' Agapanthus by covering them with at least 10cm (4in) of good soil, this way they will better resist the cold. It is essential to plant them in spring and preferable to mulch them in winter in most of our regions. For pot cultivation, use 5 young plants for a 24cm (9in) pot and shelter your pots in winter. They prefer a rich and moist but well-drained soil, enriched with sand. Water them regularly during the growth period (twice a week). However, avoid watering them afterwards. They fear excess moisture in winter. This variety is hardy up to approximately -7°C in sheltered exposure, it particularly thrives by the seaside. Its foliage can be damaged from -3°C. A well-drained sandy mixture, slightly acidic, should be used. This plant seems to prefer shallow but wide containers, and will flower abundantly if regularly fed with slow-release fertilizer.

Planting period

Best planting time April
Recommended planting time March to May

Intended location

Suitable for Meadow
Type of use Border, Edge of border, Container, Greenhouse, Conservatory
Hardiness Hardy down to -6°C (USDA zone 9a) 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 and well-drained

Care

Pruning No pruning necessary
Disease resistance Good
Overwinter Can be left in the ground

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