Ishikura Improved
Allium fistulosum
 Ishikura Improved
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Seed #071 |
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This is a traditional medium early Japanese type bunching onion. At maturity, the stalk has white shanks up to 20-24" long with 6-7 deep green, thick leaves. These green onions do not form bulbs and do not multiply by division. The Ishikura Improved is tolerant to warm and cool temperatures and is suitable for winter harvesting in some areas.
- Warm/cool season annual
- Approx. 1300-1400 seeds in packet. (A seed will vary in weight and size within a given seed lot. The number of seeds stated is only an estimate.)
- 197,000 seed count per pound.
- Maturity: Approx. 40-50 days
- Planting season: Late spring to fall
Buy in bulk
Available in 1-lb increments, minimum 1 lb.
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Cultivation: Prepare fertile, well-drained soil. Sow seeds in late spring to fall in a sunny location. Keep soil moist. Fertilize as needed. Recommended for summer to fall sowing on the US East Coast and winter sowing in the Sunbelt. Winter hardy in most areas. Mulch if hard frost expected. Plants are mature when green leaves reach 6". White stems up to 28" can be achieved by mounding earth up over the stems to blanche them.
Germination
Temperature |
Seed
Depth |
Seed
Spacing |
Thin
To |
Row
Distance |
| 50-95°F |
1/4-1/2" |
1" |
1.5-2" |
32-36" |
Please note: Maturity, adaptability and disease tolerance may differ under your specific climate and/or growing conditions.
Culinary tips: Especially popular in Japan for sukiyaki, soup, and salads. Can be boiled and add miso dressing.
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