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Scallion Ishikura Long White - Ferme de Sainte Marthe Seeds

Allium cepa Ishikura Long White
Onion

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‘Ishikura Long White’ Scallion is a classic Japanese variety that is particularly cold-resistant and easy to grow. It forms 50 cm tall, 2.5 cm wide, slender white stems with green leaves. Delicious finely chopped in salads or cooked like onion. Sow from March to July and harvest from late May to late October. Organic seeds.
Ease of cultivation
Beginner
Height at maturity
30 cm
Spread at maturity
20 cm
Soil moisture
Moist soil
Germination time (days)
8 days
Sowing method
Direct sowing, Sowing under cover
Sowing period February to April, August to September
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Flowering time June to September
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Harvest time April to September
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Description

‘Ishikura Long White’ Scallion is a classic Japanese variety that is particularly cold-resistant and easy to grow. It forms 50 cm tall, 2.5 cm wide, slender white stems with green leaves. Delicious finely chopped in salads or cooked like onion. Sow from March to July and harvest from late May to late October.

Scallions, sometimes called green onions or bunching onions, are a tasty perennial vegetable. They belong to the Allium family, along with garlic, onions, shallots and chives. Like chives, they form clumps of fine, hollow cylindrical stalks (scapes) and leaves. They are generally grown for two to three years, after which they become less productive and need to be divided. In regions with milder winters, it is possible to harvest the leaves all year round. When left to go to flower, scallions produce pretty white pompoms that hover over the leaves. Both leaves and stems are delicious finely chopped and served with omelettes, quiches and fish dishes. Scallions are rich in antioxidants, minerals and vitamin B.

Harvesting: scallions can be harvested at all growth stages, from June to October, about 3 months after sowing. Either snip off a few leaves with scissors or harvest the whole stem.

Conservation: scallions can be kept for a few days in the refrigerator or for a few months when dried or frozen. Nevertheless, for a fuller aroma they are definitely best eaten fresh!

Good to know: We recommend mulching as this reduces the need to water and weed your plants. Growing scallions alongside carrots will protect the latter from carrot fly. However, avoid growing them too close to vegetables belonging to the Fabaceae family (beans, peas, broad beans).

Even if the vegetable garden is first and foremost a place for growing great quality veg, it’s always a good idea to leave a bit of room for flowers. Growing flowers alongside your vegetable plants will make your general gardening experience more enjoyable and is a great way to attract pollinators and repel garden pests! Flowers such as gaillardia, marigolds, zinnias, cosmos or nasturtiums can be sown in and around the rows of vegetables. Herbs such as dill can be very useful also. Bear in mind that some companion plants self-seed easily and can be a bit invasive (borage, chives, lemon balm etc.)

NB. Organic seeds (in French "AB" for "Agriculture Biologique") are produced from plants that aren't treated with phytosanitary products (insecticides, weed killers). The seeds do not undergo post-harvest treatment. They carry the AB label and are approved by Ecocert, an independent structure.

Harvest

Harvest time April to September
Type of vegetable Bulb vegetable
Size of vegetable Medium
Interest Flavour, Productive
Use Cooking

Plant habit

Height at maturity 30 cm
Spread at maturity 20 cm
Growth rate normal

Foliage

Foliage persistence Evergreen
Foliage colour medium green
Aromatic? Fragrant foliage when creased

Botanical data

Genus

Allium

Species

cepa

Cultivar

Ishikura Long White

Family

Alliaceae

Other common names

Onion

Origin

Cultivar or hybrid

Annual / Perennial

Perennial

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Planting and care

Soil preparation:

Onions will grow in most types of soil, preferably light and well-drained. Onions are very sensitive to excess nitrogen: avoid growing onions on a recently fertilized plot, after green manures or vegetables from the Fabaceae family (beans, peas, broad beans). Make sure to wait about 5 years before returning onions to the same plot.

Spring sowing: Coloured onions (yellow and red) and some early white varieties are direct sown from February to April (or in the autumn in milder climates). Lightly sow in furrows, about 2 cm deep, with 20 cm between each row. Gently cover with soil and water. Germination takes about 18 days. When the seedlings are approximately 5 cm tall (about 2 months after sowing), they need to be thinned out. Keep one plant every 10 cm on average. Harvest during the summer months.

Autumn sowing: White onions are sown in late summer (August-September) in seed trays or pots. Transplant one month later in milder climates, or in late winter elsewhere (February). Allow 20 cm between rows and 10 cm between each plant. White onions are then harvested in the spring.

Care: Hoe regularly, especially at the beginning. Avoid mulching as this can cause the bulbs to rot. Onions are sensitive to excessive humidity: watering should be kept to a minimum, mainly during sowing and transplanting.

Seedlings

Sowing period February to April, August to September
Sowing method Direct sowing, Sowing under cover
Germination time (days) 8 days

Care

Soil moisture Wet
Disease resistance Good
Pruning No pruning necessary

Intended location

Type of use Vegetable garden
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Soil léger
Exposure Sun, Partial shade
Soil pH Any
Soil type Silty-loamy (rich and light), 130

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