Average 40-50 days to maturity. A uniform and flavorful bunching onion, it is a popular and traditional Japanese variety for sukiyaki, soup and salads. Ishikura reaches enormous proportions (to two feet tall, one inch across) while remaining tender and scallion-like, never forming a bulb. A perfect heat- and cold-tolerant green that is a go-to choice to grow alongside Asian greens in the cool season! No garden should be without this easy-to-grow culinary staple!
- 6-12 hours of Sun
- Sprouts in 7-14 Days
- Ideal Temperature: 45-80 Degrees F
- Seed Depth: 1/4"
- Plant Spacing: 4-6"
- Frost Hardy: Yes
- Allium fistulosum
Growing Tips: Usually started indoors 8-12 weeks in advance of planting out, typically 3-4 weeks ahead of last spring frost. Does best in rich, moist soil.