Growing Brown Onions from Seed
Growing onions in your backyard garden is a simple process, and homegrown onions will be a welcome addition to your kitchen.
Planting Time: Onions are typically cool-season crops so Autumn is the best time to plant seeds in most areas.
Soil: Onions prefer well-draining soil rich in organic matter. Work in compost or well-rotted manure to improve fertility. Aim for a slightly acidic to neutral soil pH (6.0-7.0).
Planting Onion Seeds: Seeds can be started indoors then transplanted, or sow directly in your garden bed. Sow them about half a cm deep and thin the seedlings to 10-15cm spacing once they emerge.
Watering: Onions need consistent moisture for optimal growth, especially during the bulbing stage. Water thoroughly when the top few cm of soil feels dry. Avoid overwatering, as onions can be susceptible to rot in waterlogged soil. Apply a layer of mulch around the onions to conserve soil moisture, suppress weeds, and regulate soil temperature.
Fertilising: Onions benefit from regular feeding. Apply a balanced, all-purpose fertiliser when planting and side-dress every 3-4 weeks throughout the growing season.
Harvesting: Onions can be harvested at various stages, depending on your preference. For green onions, harvest when the leaves are tall and green. For mature bulbs, wait until the tops have fallen over and dried. Carefully lift the bulbs and allow them to dry in a well-ventilated area before storing.
Storage: Once harvested and cured, store onions in a cool, dry place. Braiding or hanging them in mesh bags can help maximize air circulation and extend storage life.
