Plant Name: Green Onion

Sunlight(?)Full sun (6-8 hours)
Days To Maturity(?)60-95
Planting Season(?)Spring, Fall
Temperature(?)55-75°F (13-24°C)
Seeds Or Seedlings(?)Both can be used (Buy Seeds)
Container Size(?)1-2 gallon (6-8 inch) (Buy Now)
Support Needed(?)No
Potting Soil(?)Regular (Buy Now)
Watering Needs(?)Regular
Fertilizer(?)Balanced (Buy Now)
Pests(?)Aphids, onion maggots, slugs, snails, thrips
Diseases(?)White rot, onion downy mildew, leaf blight

How To Grow

  1. Container Selection: Choose a shallow container with a minimum depth of 6-8 inches. Spring onions have shallow roots, so width is more important than depth. A container with a diameter of 12-18 inches should provide ample space for multiple plants. Ensure the container has drainage holes to prevent waterlogging.
  2. Soil: Fill the container with well-draining potting mix or a loamy soil amended with organic matter. Spring onions prefer slightly acidic soil with a pH level between 6.0 and 7.0.
  3. Variety Selection: Select spring onion varieties suited for container growing, such as ‘Evergreen Bunching,’ ‘White Lisbon,’ or ‘Ishikura Improved.’
  4. Location: Place the container in a location with full sun to partial shade. Spring onions prefer cooler temperatures and can tolerate some shade, especially in warmer climates.
  5. Planting: Spring onions can be grown from seeds, sets, or transplants. If starting from seeds, sow them directly into the container, following the spacing recommendations on the seed packet. If using sets or transplants, plant them about 1 inch deep and 2-3 inches apart.
  6. Watering: Keep the soil consistently moist but not waterlogged. Spring onions require regular watering, especially during dry spells, to promote healthy growth. Avoid overwatering, as it can lead to rotting.
  7. Fertilizing: Spring onions are light feeders and do not require heavy fertilization. However, you can apply a balanced liquid fertilizer or compost tea every 3-4 weeks to promote healthy growth.
  8. Mulching: Apply a layer of organic mulch around the base of the spring onion plants to help retain moisture, regulate soil temperature, and suppress weeds.
  9. Pest Control: Monitor the spring onion plants for pests such as onion thrips, onion maggots, and aphids. Use organic pest control methods such as row covers or insecticidal soap to manage infestations.
  10. Harvesting: Harvest spring onions when they reach the desired size, typically 6-8 inches tall. Cut the green tops as needed, leaving the white bulbs in the soil to regrow. Continuously harvesting the green tops encourages new growth and prolongs the harvest period.

Check out our detailed guide to grow green onion in a container.


Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.