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Ishikura Improved Bunching Onion Seeds

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Ishikura Improved Bunching Onions

SKU: ON5-250

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Country Of Origin: Japan Japan

Availability: In stock

Price: $3.00

Your price: $2.50

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66 days. Allium cepa. Open Pollinated. Ishikura Improved Bunching Onion. The plant produces very flavorful bunching onions. These salad onions have long white stalks. Most plants can be eaten with minimal waste. Great for sukiyaki, soups, and salads. Excellent for spring or late summer harvests. This improved version of the Ishikura Onion has long distance shipping qualities. These green onions do not form bulbs and do not multiply by division. The stalks can be harvested when pencil thin or left to grow as thick as a mature carrot. It is tolerant of warm and cool temperatures and is suitable for winter harvesting in some areas. One of the most popular bunching onions in Japan. An excellent choice for home gardens, Farmer’s Markets, and market growers. United States Department of Agriculture, PI 656945. A variety from Japan.

Lot No: 102804

Germination: 90%

Test Date: 09/2025

Seeds Per Pound: 144,000

Plant Height: 20 to 24" tall

Planting Season: Spring

Sunlight Requirement: Full Sun

Planting Method: Direct Sow/Indoor Sow

Onions Allium cepa

Seed Depth

Soil Temp. for Germination

Days to Germination

Sunlight Requirements

Planting Time

1/4 to 1/2"

50 F to 90 F

10 to 14 days

Full Sun

Spring

USDA Hardiness Zone

Seed Spacing

Row Spacing

Space After Thinning

Days to Harvest

N/A

3 to 4"

12 - 18"

4 to 6"

90 - 120 days

Onion Planting Information:

Onion seeds should be planted indoors 6 to 8 weeks before the ground can be worked. You can also plant seeds directly in the garden. Spring planting should occur as soon as the soil can be worked. Keep free from weeds. You need long sunny days to grow large onions. Shallots are very close to garlic and are very easy to grow. Plants can grow 8 to 12" tall.

Soil Requirements:

Requires fertile soil in a well-drained location in the garden. Apply mulch and grass clippings, or straw, around the base of the plant.

Water Requirements:

Keep seedlings and transplants consistently moist, but not waterlogged. Water well during dry and hot spells.

Fertilizer Requirements:

Use Slow Release (6 Month) Fertilizer when transplanting outdoors. Apply Miracle-Gro Liquid Fertilizer every two weeks.

Harvest Tips:

You can harvest onions for their green stems (scallions) at any time. Cut the green stems with garden scissors when tops are 4 - 8" tall. For bulb products, let the tops dry up by themselves before digging them up. Spread bulbs on the ground for 3 to 5 days to cure.

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Reimer seeds has over 5,000 quality vegetable, flower, and herb seeds for the home gardener and market growers. We do not sell any Genetically Modified seeds. This year we reduced our prices on many items, added new items, and have added additional bulk items by the ounce and pounds! Take time to review our impressive Online Seed Catalog. Sorry, we do not have a printed catalog to mail you. Plan your garden, and then order your varieties for this upcoming season. Please check back often, as we add new items regularly. If you don’t see an item you want you can always email us and we’ll see if we can bring it into stock!