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Allium unifolium Eros

Allium unifolium Eros
American Onion, Singleleaf Onion

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More information

A cultivar derived from Allium unifolium, a species that tolerates moist, even wet soils more easily. However, always plant it in well-drained soil. It offers abundant flowering in early summer, in the form of pretty, 10 cm in diameter, satin pink-lilac umbels. Decorative, easy to slip in anywhere and worry-free.    
Flower size
10 cm
Height at maturity
30 cm
Spread at maturity
10 cm
Exposure
Sun
Hardiness
Hardy down to -18°C
Soil moisture
Dry soil, Moist soil
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Best planting time September to October
Recommended planting time January to February, September to November
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Flowering time June
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Description

Ornamental Garlic or Allium unifolium 'Eros' is a cultivar derived from a botanical species native to mountainous areas in the western United States, which has the advantage of tolerating moist, even wet soils. It easily produces 2 to 3 flowering stems per bulb and offers an abundant flowering in early summer, in the form of pretty umbels of bell-shaped pink-lilac flowers.

Allium unifolium is a wild mountain plant, native to coastal regions of the western United States, including Northern California and Oregon. This herbaceous bulbous plant belongs to the allium family (liliaceae), like cultivated garlic, onion, and leek. It has a fleshy and fibrous storage organ that multiplies by forming bulblets. 'Eros' produces inflorescences perched at 30 to 35 cm high at the end of stems, which are umbels about 10 cm in diameter, consisting of about twenty large star-shaped flowers with pink-lilac petals. This flowering emerges from a dense and herbaceous clump, composed of deciduous green, linear and very narrow leaves, shorter than the flower stalks. It occurs around June. The plant self-seeds spontaneously in light and fertile soil.

Easy to grow in sunny, dry or moist, but well-drained soil and hardy down to -15°C, Allium unifolium 'Eros' can be used in borders, rock gardens, or in pots to enjoy its beautiful flowering on a balcony or terrace. Enhance your compositions with its fresh or dried flowers, they will bring a rustic and colourful touch. Plant it in groups of 5 tucked between ornamental grasses, dry soil perennials such as hyssops, thymes, arborescent artemisias or groundcovers, silver baskets or even aubrietas.

Small vegetable garden tip: plant some ornamental garlic in the middle of strawberries to protect them from fungal diseases, they will bring some pleasant blooms that are sometimes missing among the vegetables.

 

 

Allium unifolium Eros in pictures

Allium unifolium Eros (Flowering) Flowering

Plant habit

Height at maturity 30 cm
Spread at maturity 10 cm
Growth rate normal

Flowering

Flower colour pink
Flowering time June
Inflorescence Umbel
Flower size 10 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Allium

Species

unifolium

Cultivar

Eros

Family

Amaryllidaceae

Other common names

American Onion, Singleleaf Onion

Botanical synonyms

Allium grandisceptrum

Origin

Cultivar or hybrid

Product reference22688

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Planting and care

Allium unifolium Eros is easy to grow. It prefers warm garden locations with direct access to sunlight. Preferably plant it preferably before the end of October so that it has time to establish itself properly. Plant 10 cm deep with a spacing of 8 to 10 cm between the bulbs in rich, light, moist or dry but well-drained soil. This plant hates stagnant moisture and can be prone to powdery mildew and rot.

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Planting period

Best planting time September to October
Recommended planting time January to February, September to November
Planting depth 10 cm

Intended location

Suitable for Meadow, Rockery, Pond edge
Type of use Border, Edge of border, Container, Slope, Vegetable garden
Hardiness Hardy down to -18°C (USDA zone 7a) Show map
Ease of cultivation Beginner
Exposure Sun
Soil pH Any
Soil moisture Dry soil, Moist soil, well-drained, fertile

Care

Pruning No pruning necessary
Soil moisture Dry soil, Moist soil
Disease resistance Good
Overwinter Can be left in the ground

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