Can onions with sprouts be planted?

Can onions with sprouts be planted?

Yes, onions with sprouts can be planted and grown into new onions. By following a few simple steps, you can successfully grow multiple onions from a single sprouted bulb. In this article, we will explore the process of planting sprouted onions, from preparing the sprouts to harvesting the mature bulbs.

Preparing the Sprouted Onions

Before planting the sprouted onions, it is important to properly prepare them. Here are the steps to follow:

  1. Peel off the papery outer skin of the sprouted onion.
  2. Use a knife to carefully cut the onion’s layers from the sprouts, taking care not to cut the sprouts themselves.
  3. Separate the onion sprouts from each other.

These preparations will ensure that the sprouts are ready for planting and have the best chance of growing into mature onions.

Planting the Sprouted Onions

Once the sprouts are prepared, it’s time to plant them. Follow these steps:

  1. Place the sprouts in water and wait for white roots to grow. This helps the sprouts establish a strong root system.
  2. Plant the sprouts about 1 inch deep in quality potting soil, making sure to keep them at least 3 inches apart.
  3. Water the plants every few days, ensuring that the soil is well-drained.
  4. Check for weeds daily and remove any that appear to prevent competition for nutrients.
  5. Treat the plants twice a week with a fungicidal spray to prevent harmful fungi from damaging the onions.
  6. Harvest the onions after 60-80 days when bulbs have formed.

Following these steps will give your sprouted onions the best chance to grow into healthy, mature bulbs.

Tips and Considerations

Here are some additional tips and considerations to keep in mind when planting sprouted onions:

  • If the sprouts have dry, brown roots, they are already dead and cannot be planted.
  • Change the water the roots are growing in every 24-36 hours to prevent rot.
  • Rotten onions should be discarded as they can spread disease to healthy plants.
  • It is possible to plant onions that haven’t fully sprouted, but be careful not to cut through the roots.
  • Onions can be grown from any variety, including green onions.
  • Proper soil aeration is important for container gardening.
  • Onions need 6-8 inches of space when planting to allow for proper growth.
  • Onions can be planted before the last frost and require 13-16 hours of sunlight daily.
  • Shower water runoff can be used to water onion plants.
  • Store harvested onions in a dark, cool, and dry place to prevent sprouting.


Planting onions with sprouts is a simple and rewarding process. By separating the sprouts and planting them in good soil, you can grow multiple new onions within a single season. Remember to follow the proper steps and considerations outlined in this article to ensure successful growth. Happy planting!

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Q: What are onion sprouts?

Onion sprouts are the small green shoots that emerge from an onion bulb when it starts to grow. They are a natural part of the onion’s growth process.

Q: Can onions with sprouts be planted?

Yes, onions with sprouts can be planted. However, certain factors should be considered before planting, such as the age and condition of the sprouted onion, as well as the health and viability of the sprout.

Q: What are the benefits of planting sprouted onions?

Planting sprouted onions has advantages such as the potential for a quicker harvest and the ability to utilize otherwise wasted onions.

Q: Are there any drawbacks to planting sprouted onions?

Yes, there are some drawbacks to planting sprouted onions. These include the risk of low yield or poor quality onions and increased susceptibility to disease or pests.

Q: What are the alternatives to planting sprouted onions?

Instead of planting sprouted onions, you can harvest and use the onion sprouts for culinary purposes, or compost the sprouted onions.