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How to Care for Green Onion Plant

Updated: October 13, 2022

Green onions, also known as scallions or spring onions, are a popular addition to many dishes. They are easy to grow and care for, making them a great choice for gardeners of all levels. In this article, we will discuss how to care for green onion plants to ensure they grow healthy and strong.

Choosing the Right Location

Green onions prefer full sun but can tolerate partial shade. Choose a location that receives at least six hours of direct sunlight per day. If you live in a hot climate, choose a spot that offers afternoon shade to prevent the plant from wilting.

Green onions grow well in well-draining soil with a pH between 6.0 and 7.5. If your soil is too acidic or alkaline, add organic matter such as compost or peat moss to improve its quality.

Planting Green Onion Bulbs

Green onions are typically grown from bulbs rather than seeds. The bulbs should be planted about one inch deep and two inches apart. If you prefer larger green onions, space them further apart. Water the soil immediately after planting to encourage germination.

Watering

Green onion plants require regular watering to thrive. Water them deeply once or twice a week, depending on the weather conditions. The soil should be moist but not waterlogged.

Avoid overhead watering as it can promote fungal growth and lead to disease. Instead, use a soaker hose or drip irrigation system to deliver water directly to the soil.

Fertilizing

Green onion plants benefit from regular fertilization. Use a balanced fertilizer once a month during the growing season to provide the plant with the necessary nutrients. Alternatively, you can use compost or organic fertilizers such as fish emulsion or seaweed extract.

Pests and Diseases

Green onion plants are relatively pest-free but can be susceptible to root maggots and onion thrips. Root maggots can be prevented by using row covers, while onion thrips can be controlled with insecticidal soap.

Green onions can also be affected by diseases such as onion smut and downy mildew. To prevent these diseases, avoid overhead watering and ensure the soil is well-draining.

Harvesting

Green onions can be harvested when they reach a diameter of about ½ inch. Use a pair of sharp scissors to cut the green onions at ground level. Alternatively, you can pull the entire plant out of the ground.

Green onions are best used fresh but can also be frozen or dried for later use.

FAQ

How often should I water my green onion plants?

Water your green onion plants deeply once or twice a week, depending on the weather conditions. The soil should be moist but not waterlogged.

How do I prevent root maggots from attacking my green onion plants?

Root maggots can be prevented by using row covers to keep the adult flies from laying their eggs near the plants.

Can I grow green onions indoors?

Yes, green onions can be grown indoors in a sunny location or under grow lights. Use a well-draining potting mix and water regularly.

How do I know when my green onions are ready to harvest?

Green onions can be harvested when they reach a diameter of about ½ inch. Use a pair of sharp scissors to cut the green onions at ground level or pull the entire plant out of the ground.

In conclusion, growing and caring for green onion plants is easy and rewarding. By following these simple tips, you can enjoy a bountiful harvest of fresh and flavorful green onions all season long.