Cultivated both for its culinary uses and its ornamental value, Allium fistulosum (Scallion) is a clumping, slowly spreading, evergreen, perennial onion. In late spring to early summer, it produces attractive, ivory-white, globular to somewhat elongated flowers, packed with up to 100 flowers. They rise atop hollow blue-green stems above the basal foliage of linear green leaves. Fast-growing and very easy to grow, Scallions are hardy, take up very little space, and are excellent in oriental stir fries, soups, or salads. Usually mild, the flavor tends to be spicier during the summer. This edible, bulbous perennial remains green virtually all year round.

• Grows up to 24 in. tall (60 cm) and 12 in. wide (30 cm). Welsh Onion goes dormant during the winter and multiplies by forming perennial evergreen clumps.
• Thrives in light, fertile, nutrient-rich, and well-drained soils in full sun to part shade. While drought tolerant, regular moisture is required for optimum growth.
• Welsh Onion is deer resistant and makes a lovely addition to borders, cottage gardens, gravel gardens, herb gardens, and vegetable gardens. Plant in groups for the best visual impact.
• No serious pest or disease issues. Keep an eye out for slugs and snails, onion white rot, and downy mildew.
• Deadhead after flowering.
• Welsh Onion can be grown from seeds and harvested in the first year. Once established, you may divide it (at almost any time of the year, though spring is probably best) to make more plants.
• Allium fistulosum is native to China and is not indigenous to Wales or particularly common in Welsh cuisine.
• The world of Bunching Onions offers very attractive cultivars which vary in size, vigor, leaf color, length, and hardiness: 'Santa Clause' and 'Red Beard' with beautiful red skin, 'Shimonita' with thick and shorter stems and extremely cold-hardy varieties such as 'White Lisbon', 'Evergreen White Bunching' and 'Winter Over'.