Plant Guide

vegetable

Spring Onion

Allium fistulosum

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Spring Onion (Allium fistulosum) at Longfellow's Greenhouses

Spring Onion

Spring Onion

(Photo courtesy of NetPS Plant Finder)

Plant Height:  14 inches

Flower Height:  30 inches

Spacing:  14 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  (annual)

Other Names:  Welsh Onion, Japanese Bunching Onion

Description:

A clumping, perennial onion grown primarily as a vegetable for harvest of its onion flavored leaves; may be harvested year round in warm climates; globular flower clusters on long stalks from mid spring to late summer are quite showy

Edible Qualities

Spring Onion is an annual vegetable plant that is commonly grown for its edible qualities, although it does have ornamental merits as well. The fragrant narrow bluish-green leaves can be harvested at any time in the season. The leaves have a zesty taste with a crisp texture and a pleasant fragrance.

The leaves are most often used in the following ways:

  • Fresh Eating
  • Cooking
  • Seasoning

Planting & Growing

Spring Onion will grow to be about 14 inches tall at maturity extending to 30 inches tall with the flowers, with a spread of 18 inches. When planted in rows, individual plants should be spaced approximately 14 inches apart. This fast-growing vegetable plant will behave as an annual in our climate, which means that it can be expected to grow for one season in your garden and then die after producing a crop. As this plant tends to go dormant in summer, it is best interplanted with late-season bloomers to hide the dying foliage.

This plant can be integrated into a landscape or flower garden by creative gardeners, but is usually grown in a designated edibles garden. It does best in full sun to partial shade. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is not originally from North America. It can be propagated by division.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Garden  Naturalizing  Herb 
Applications
Flowers  Foliage Color  Attracts Wildlife 
Ornamental Features

Disclaimer - This Plant Finder tool is an online resource representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact the store directly for current availability. It does not include our entire selection of plants, so be sure to visit our store to see varieties that may not be represented on this list.

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