Common Onion - Allium cepa

Allium cepa, commonly known as onion, common onion or bulb onion, is an essential edible bulb cultivated for its flavourful stems and bulbs. Suitable for most Australian conditions, it prefers full sun and fertile, well drained soil. The onion’s upright green foliage makes it both decorative and practical, adding structure to vegetable beds while providing a continuous harvest for culinary use. It performs well in Melbourne gardens with regular watering and good drainage.

Key Features:

• Soil: Full sun improves bulb size and flavour.
• Light: Full sun to semi shade; full sun encourages best flowering.
• Watering: Maintain even moisture during bulb formation; avoid waterlogging.
• Fertiliser: Apply a slow release fertiliser in spring to support healthy growth.
• Maintenance: Harvest when foliage yellows and bends; cure bulbs in shade.
• Flowering: Flower stalks may appear on mature plants; remove to maintain bulb energy.

Rotate onion crops annually to avoid soil borne diseases and improve yield. Harvest in dry conditions to ensure long lasting storage.

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