How many days does it take for onion seeds to germinate?

Scallion , also known as chives, spring onions, and all-season onions, is a common vegetable with a strong aroma. It is often used as a seasoning or food ingredient and has broad planting prospects. So, when planting green onions, how many days will it take for the onion seeds to germinate and sprout? Let’s learn more about it below.

How many days does it take for onion seeds to germinate?

The germination and emergence time of shallot seeds is usually around 5-10 days. However, the specific time will be affected by many factors, such as the planting environment (temperature, humidity, light, etc.) and the planting level. In addition, if the seeds are soaked and germinated before sowing, the germination time can be shortened to about 3-4 days.

How to improve the germination rate of shallot seeds?

1. Soil preparation

Choose loose, well-drained soil rich in organic matter for planting. Before sowing, you can add some well-rotted compost or organic fertilizer to the soil to increase its fertility.

2. Seed selection

Choose new seeds that are plump, free of pests and diseases, and avoid using old seeds, as the germination rate of old seeds will be significantly reduced.

3. Seed pretreatment

(1) Turn the seeds over and dry them 2-3 days before sowing, and use ultraviolet rays to sterilize them and increase seed activity.

(2) Soak the seeds in clean water at room temperature for 4-6 hours, then stir and soak them in hot water at 50-53 degrees for about 20 minutes to promote the seeds to absorb water.

(3) Use potassium permanganate or other solutions to disinfect seeds for a short period of time. Note that seeds should not be soaked in water again after disinfection.

4. Germination operation

Place the soaked seeds on a moistened paper towel or gauze, put them in a sealed bag, and place them in a warm place (about 20-25°C) for germination. When about half of the seeds turn white, you can start sowing.

5. Sow seeds correctly

When sowing, it is recommended to adopt the method of high ridges and film covering, and the depth of the sowing furrow should be controlled at 2-3 cm, and the furrow distance should be about 10-15 cm. Water the soil thoroughly before sowing, and then sow after the water has penetrated. After sowing, cover the seeds with wood ash or fine dry soil, about 1.5 cm thick.

In general, it usually takes 5-10 days for shallot seeds to germinate under suitable planting conditions. However, in actual operation, appropriate measures should be taken to promote the germination and emergence of shallot seeds according to local climatic conditions and soil conditions, such as soaking and germination.