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Allium scorodoprasum Passion

Allium scorodoprasum Passion
Sand leek, Rocambole, Spanish garlic, Ornamental Onion

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A portion of the bulbs arrived in poor condition and had clearly taken on water. However, the customer service responded immediately to refund me for the bulbs in question.

Mireille F., 07/12/2018

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More information

This rare bulbous plant is a little strange with its somewhat anarchic summer inflorescences, composed of green bulbils mixed with reddish star-shaped flowers. This ornamental garlic has an indefinable charm and an unusual cut flower. It is a hardy, vigorous, and long-lasting plant in well-drained soils, in the sun. It tolerates summer drought.
Flower size
5 cm
Height at maturity
1.10 m
Spread at maturity
20 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 to July
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Description

Allium scorodoprasum 'Passion' is a beautifully coloured ornamental garlic, still rare in cultivation and unknown to gardeners. The inflorescences could be described as "rocambolesque": they are imperfect, even slightly anarchic, clusters of small purple bulblets mixed with star-shaped red flowers, whose stalks lengthen when fertilised. This hardy bulb develops a strong stem that allows the umbel to withstand the wind, like tall grasses. A charming and original cut flower, it is vigorous and long-lasting in well-drained, sunny soils. 

 

 

Native to central Europe, especially the Caucasus, Allium scorodoprasum is the wild form of rocambole garlic. It naturally grows in often sandy soils. It is a bulbous plant that prefers light and rather dry soil, with a basic (calcium-rich) and clayey tendency, poor in organic matter (humus, compost).

'Passion', recently introduced from the Netherlands, bears inflorescences perched at about 1.1m (4ft) in height, on spiralled stems in their upper part. They are globular clusters surrounded by membranous bracts, made up of initially green bulblets that turn purple, and small star-shaped flowers that are mauve on the outside, ruby red on the inside. This flowering occurs between June and July. The foliage consists of 4 to 6 basal, tubular leaves with a strong sulphur smell. It yellows and disappears at the same time as the flowering appears, which is a good adaptation to hot and dry summer conditions. This plant produces few seeds and mainly reproduces through the dissemination of bulblets produced on the umbel.

 

Quite easy to grow, Allium 'Passion' appreciate any type of moist but well-drained soil during the growing season. It likes dry soil in summer. It prefers a sunny location. Perfect in flower beds and borders, it can also be grown on a balcony or patio. Its foliage and flowers will add a unique touch to fresh or dried bouquets. Plant it in groups of 5 among ornamental grasses and tall and light perennials like fennel, or near roses or yellow brooms. It will have a beautiful effect in a flower meadow, in the company of poppies, poppy anemones, cornflowers, and centaureas. For a spectacular sculptural effect, plant them with topiary boxwood balls. This edible garlic can also be planted in the vegetable garden.

 

Small vegetable garden tip: plant some ornamental garlic in the middle of strawberries to protect them from fungal diseases. They will add a few pleasant blooms that are sometimes lacking among vegetables.

Allium scorodoprasum Passion in pictures

Allium scorodoprasum Passion (Flowering) Flowering

Plant habit

Height at maturity 1.10 m
Spread at maturity 20 cm
Growth rate normal

Flowering

Flower colour violet
Flowering time June to July
Inflorescence Umbel
Flower size 5 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green
Foliage description Deciduous foliage from the flowering season.

Botanical data

Genus

Allium

Species

scorodoprasum

Cultivar

Passion

Family

Alliaceae - Liliaceae

Other common names

Sand leek, Rocambole, Spanish garlic, Ornamental Onion

Origin

Cultivar or hybrid

Product reference855991

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Planting and care

Allium 'Passion' is rather easy to grow in well-drained soil that is dry in summer. Plant it preferably before the end of October so that it has time to establish.

Alliums fear winter humidity and waterlogged soils that cause the bulbs to rot. Give them a sunny spot in well-drained, light, sandy or even rocky soil. Plant the bulbs at a depth of 10 or 15cm (4 or 6in), spaced 15cm (6in) apart. They are not very demanding and prefer soils that are not too fertile. They occasionally appreciate a slow-release fertiliser in very poor soils.

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
Type of use Border, Container, Slope, Vegetable garden
Hardiness Hardy down to -18°C (USDA zone 7a) Show map
Ease of cultivation Beginner
Planting density 100 per m2
Exposure Sun
Soil pH Neutral, Any
Soil moisture Dry soil, Moist soil, well-drained, light

Care

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