Red onion

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