Long white spring onion Ishikura [Allium fistousosum]

The Japanese spring onion 'Ishikura' is a perennial vegetable and medicinal plant in the onion family originating in Japan. The robust, hardy and versatile plant develops only a small tuber and forms long, white and cylindrical shafts, with fresh green and upright leaves. The taste is very aromatic and slightly spicy. Suitable for year-round and for growing in pots.

General information
Plant family: Alliaceae
Life Cycle: Perennial
Days to harvest: 90 days
Plant height approx.: 60 cm
Root Type: Deep Root
Nutrient requirements: Medium Eaters
Water Requirements: Means
Winter hardiness: Up to-20 °C
Location: Sunny
Floor: Pervious, damp, Humos

PH: 5.5 to 7

Sowing and planting information
Germ Type: Dark germ
Seed Depth: 1-2 cm
Optimal germination temperature: 13-18 °C
Germination time: 14-21 days
Planting, row spacing: 20x20 cm

Optimal mixed culture: Endive, strawberry, chamomile, carrot, parsley, lettuce, celery, salsify, tomato
Unfavorable mixed culture: Bean, Pea, Kale, Prote, Chives, Onion, Garlic

Subtropic climate (Mediterranean) (e. g. B. Portugal, Spain, Italy)
Sow directly into the open air from January to April or in autumn from September to November when the temperatures are still cool at night.

Moderate climate (e. g. B. Germany, Switzerland, Poland)
Sow directly into the frost-free open air from March to May.

General
Sow directly in rows.
Spring onion prefers a full sunny location with sufficient water and nutrient-rich, humus soil. Prepare the soil for with deposited animal manure. Avoid waterlogging.

Additional tips
For a longer harvest period, care should be taken not to hurt the heart when harvesting. Winter hedge bulb generally prefers cooler, humid climates. In order to quickly obtain a fine, crumbly and well-drained soil, an additional incorporation of biochar and primeval rock flour is recommended.

Type of propagation
Spread occurs via seeds.

Care Plants
Due to the initially slow growth of the plants, we recommend weeding the surrounding herbs regularly. M It animal manure prepared beds and planting in mixed culture, replaces additional fertilization. With a perennial cultivation from the 2nd Year, we recommend annually in spring a fertilizer with plant manure to promote growth.

Germination ability of seeds: 2-3 years

Other Names
Botanical names: Allium fistudosum
English Names: Springonion
German names: Spring onion
Portuguese names: Cebolinha
Spanish Names: Cebolleta
French names: Oignon de printemps