The Ultimate Guide on How to Grow Green Onions from Seeds

Green onions, often known as scallions or spring onions, are absolutely a staple in any home garden. Not only are they versatile in the kitchen, but they also have a short growing cycle, offering a steady and bountiful return of fresh produce on your kitchen counter. This ultimate guide aims to walk you through the simple process of how to grow green onions from seeds.

The Starting Points: Choosing and Planting Seeds

Green onion seeds are readily available at any garden supply stores, and they can also be ordered online. Be sure to choose a variety based on the size and taste that you prefer. For planting, plan your seed-starting schedule at about 8 to 10 weeks before the last expected spring frost.

Sow the seeds directly onto moist, well-drained soil. Bury them approximately 1/4-inch deep and spaced about 1/2-inch apart. The seed container should be situated in a sunny location and kept consistently moist until the seeds germinate and the green onion sprouts become visible.

Fostering Growth: Caring for Your Green Onions

Once your seeds have sprouted and are around 2 inches tall, they should be thinned out to allow about 2 to 3 inches of space between each seedling. This gives each plant enough space to grow and mature fully. Remember, your green onions love the sun, so make sure they are getting at least 6 hours of direct sunlight each day.

Regular watering is essential for the growth of green onions. However, it is crucial not to overwater as this can lead to mold and other diseases. The ideal watering regime is to make sure the soil remains evenly moist.

Harvest Time: When and How to Harvest

Patience always pays off! Typically, it takes about 6 to 8 weeks from seed to harvest for green onions. Your onions are ready to collect when the bulbs are large enough to use — about a half-inch in diameter, and the tops are about 12-15 inches long.

To harvest, you can simply pull up the green onions from the soil. Make sure you grasp them close to the ground level and pull gently. To store them, clean the onions, let them air dry and keep them in a cool dark place.

Maintenance and Beyond: Pests and Diseases

Fortunately, green onions are reasonably resistant to pests and diseases. However, watch out for onion maggots, thrips, and pink root. The best way to keep these threats at bay is to rotate crops and ensure that your soil is well-drained.

Moreover, diseases like blight can occur when humidity or moisture is high. Be sure to inspect your plants regularly for any signs of discoloration, wilting, or abnormal growth. If you find a plant with these signs, remove it immediately to prevent the spread of disease.

Common Failures: Tips and Tricks

One of the common challenges in growing green onions is dealing with their delicate seeds. They are susceptible to rot if the soil is overly saturated. Therefore, the right balance between humidity and moisture is crucial. Remember, the soil should be just moist, but not soaking wet.

Also, pay close attention to the temperature. While they are cold-hardy plants, overly harsh winters can hinder their growth. Therefore, covering your green onions with a protective layer of straw or mulch can provide protection from frost.

Frequently Asked Questions

What is the best time of year to plant green onion seeds?

Green onion seeds can be planted both in spring and fall. A spring planting gives you a summer harvest, while a fall planting leads to a spring harvest. Each onion variety may have slightly different planting requirements, so always follow seed packet instructions.

How long do green onion seeds take to germinate?

Seeds will usually germinate in 7-10 days but can take up to 2 weeks. Germination rate may depend on soil temperatures and moisture levels.

Do green onions need a lot of sun?

Yes, green onions thrive in sunny spots. They need at least 6 to 8 hours of direct sunlight daily for the best growth and yield. If you’re growing them indoors, place them near a sunny window.