Onions: Good and bad neighbours in the garden

The full growing guide for this plant is available to subscribers only. Become a Super'pote to access the following information:

• Exposure
• Frost Hardiness
• Cultivation Difficulty
• Sowing Depth
• Plant Spacing
• Row Spacing
• Germination Time
• Germination Temperature
• Lifecycle
• Greenhouse Growing
• Mature height
• Maintenance
• Water Requirements
• Soil Type
• Soil pH Preference
• Pest Sensitivity
• Disease Sensitivity
• Weed Sensitivity
• Pollination
• Propagation
• Seed Storage