Green Onion
Green Onion Production
Green onions (also known as spring onions, salad onions, or bunch onions) are a cool-season Allium crop sharing the same genus as other onions. This mild-tasting onion is harvested in the immature stage before full bulb development. Along with frequent and uniform irrigation, green onions will grow best in well-drained soils like sandy loam, loam, and clay loams.
Green onion varieties are generally categorized into short- and long-day types (referring to the number of daylight hours), although short-day varieties bulb too easily to be used for commercial green onion production. Many varieties successfully grown in the summer or longer-day months are hybrids with Japanese bunching onion parentage. Other long-day varieties include Sweet Spanish and Southport White Globe.
California leads domestic production of green onions, with farming mainly in Monterey, Riverside, and Ventura Counties. Many smaller scale operations of green onion production are found in other parts of the state, including Santa Clara County. Imports from Mexico fill the gaps in production when California's green onion harvests decline between winter and early spring.
Different Resources about Green Onion Production
Green Onion Production Summary (FDA and UC Davis)
Green Onion Pest Management Guidelines (see Onions)
Pests and Disorders of Green Onion (see Onions and Garlic)
Green Onion - Recommendations for Maintaining Postharvest Quality
Green Onion Nutritional Information (CA Dep. of Education)