Onion-QR - Manning's Greenhouse

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The Onion

The onion, scientifically known as Allium cepa, has a rich history dating back thousands of years. Originating in central Asia, it has been cultivated for culinary and medicinal purposes since ancient times. Egyptians revered the onion, believing its concentric layers symbolized eternal life. It spread across the globe through trade routes, becoming a staple in various cuisines and cultures. Onions are biennials, typically grown as annuals, and thrive in well-drained, fertile soils with full sun exposure. Cultivation begins with soil preparation, ensuring it is loose and free of weeds. Planting onion sets or seeds should be done in early spring, spacing them adequately to allow for bulb development. Regular watering is essential, especially during dry periods, while mulching helps retain moisture and suppress weeds. Onions require nitrogen-rich fertilizer at planting and during bulb formation. Weeding should be regular to prevent competition for nutrients. Harvesting occurs when the tops yellow and fall over, signaling maturity. Proper curing and storage ensure longevity.
Scientific Name - Allium cepa

Key planting and gardening practices for onions include:
  • Choose a sunny location with well-drained soil.
  • Prepare the soil by incorporating organic matter.
  • Plant onion sets or seeds in early spring.
  • Space plants 4-6 inches apart in rows 12-18 inches apart.
  • Water consistently, aiming for about 1 inch per week.
  • Apply nitrogen fertilizer at planting and throughout the growing season.
  • Mulch to conserve moisture and suppress weeds.
  • Weed regularly to prevent competition for nutrients.
  • Harvest when the tops yellow and fall over, typically in late summer or early fall.
  • Cure onions in a dry, well-ventilated area before storing in a cool, dry place.

Following these practices ensures a successful onion crop, providing a flavorful and versatile addition to the culinary landscape.
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