Ishikura Onion Seeds

Ishikura Onion (Allium fistulosum) is a premium Japanese bunching onion renowned for its long, slender white stalks, crisp texture, and exceptionally mild flavor. Unlike bulb-forming onions, Ishikura grows as a non-bulbing variety, producing elegant, thick white stems topped with lush green leaves that are harvested much like scallions. Highly productive, cold hardy, and remarkably easy to grow, this heirloom has become a favorite among gardeners and chefs for its continuous harvests and outstanding versatility in the kitchen.

Introduction

Ishikura is one of the finest bunching onions available for home gardens. Instead of forming a bulb, the plant directs its energy into producing long, tender white shanks and fresh green tops that can be harvested over an extended season. The upright plants are attractive, vigorous, and capable of producing multiple harvests, making them an excellent choice for gardeners who enjoy having fresh onions available whenever they're needed.

Flavor & Culinary Uses

Ishikura has a mild, sweet onion flavor that is less pungent than traditional bulb onions. Both the white stalks and green tops are edible and delicious fresh in salads, sandwiches, tacos, baked potatoes, and dips. They are equally excellent in stir-fries, soups, omelets, noodle dishes, grilled recipes, and countless Asian-inspired meals where their delicate flavor enhances rather than overpowers other ingredients.

Growing Information

Ishikura thrives in fertile, well-drained soil with full sun and regular moisture. Sow seeds directly in the garden from early spring through late summer for successive harvests. Plants may be harvested individually or allowed to continue growing for larger stalks. Hilling soil around the stems as they develop produces longer, tender white shanks prized by chefs and home gardeners alike.

• Botanical Name: Allium fistulosum
• Plant Type: Perennial bunching onion (commonly grown as an annual)
• Days to Maturity: 60–70 days
• Plant Height: 18–24 inches
• Sun Requirements: Full sun
• Spacing: 2–4 inches