How to Harvest and Store Onions Grown in July in Zone 3

by

Growing onions in Zone 3 can be a rewarding experience, especially when you harvest them at the right time. If you’ve planted onions in July, understanding the proper harvesting and storage techniques is essential to ensure they last through the winter months.

Timing for Harvesting Onions in Zone 3

In Zone 3, onions grown in July are typically ready to harvest in late summer to early fall, around 90 to 120 days after planting. The exact timing depends on the onion variety and local weather conditions. Keep an eye on the size of the bulbs and the maturity indicators.

Signs of Readiness

  • The tops of the onions have fallen over and begun to dry.
  • The tops are turning brown and papery.
  • The bulbs have reached the desired size, typically 2-4 inches in diameter.

Harvesting Techniques

Proper harvesting techniques help prevent damage and ensure good storage life. Use a garden fork or shovel to gently lift the onions from the soil, being careful not to bruise or cut the bulbs.

Once lifted, brush off excess soil and lay the onions in a dry, shaded area with good air circulation. Avoid exposing them to direct sunlight immediately after harvest, as this can cause sunscald.

Drying and Curing

Drying and curing are crucial steps before storage. Hang the onions in bundles or spread them out on racks in a well-ventilated, shaded location. Allow them to cure for 2-3 weeks until the tops are completely dry and the skins are papery.

Ideal Conditions for Curing

  • Low humidity
  • Good airflow
  • Temperature around 75°F (24°C)

Storage Tips for Onions

Proper storage extends the shelf life of your onions. Store cured onions in a cool, dry, and dark place, such as a cellar or pantry. Maintain good air circulation to prevent mold and rot.

Ideal storage temperatures are between 32°F and 40°F (0°C to 4°C). Keep onions away from potatoes and other produce that release moisture or ethylene gas, which can cause spoilage.

Storage Containers

  • Mesh baskets
  • Woven baskets
  • Old pantyhose or onion bags

Check stored onions regularly and remove any that show signs of spoilage to prevent spread to others. Properly stored, onions can last several months, providing a fresh supply throughout the winter.

Conclusion

Harvesting and storing onions grown in July in Zone 3 requires attention to timing, drying, and storage conditions. By following these guidelines, you can enjoy fresh onions long after the growing season has ended, ensuring a flavorful addition to your winter meals.