How I Regrew Green Onions from Grocery Store Roots in Calgary

This spring, I started growing green onions from grocery store roots. Now, I am already enjoying my second harvest.

Growing green onions from seeds can take quite a while. In Calgary, the summer growing season is short, so I felt that starting green onions from seeds was not the best choice for my backyard garden.

I am not a professional farmer. So, instead of using the usual method, I decided to try something a little different inspired by a fond childhood memory.

When I was young, I remember my grandmother growing green onions during the winter. That memory came back to me when I was thinking about how I could grow green onions more quickly in Calgary.

Fresh green onions grown from grocery store roots shortly before harvest in a Calgary backyard garden

How to Choose and Plant Green Onions

One day, I found green onions on sale at the grocery store. I chose fresh green onions with long, healthy roots because I wanted to give the plants a good start.

I cut the green onions about 5 cm (2 inches) above the roots. Then I planted the root sections in my garden.

Store-bought green onions cut to 5 cm in length with healthy roots being planted into garden soil

I planted them deep enough so that only the very top of the stem was visible above the soil. I wanted the roots and the lower part of the stem to have good contact with the soil. After planting, I kept the soil from becoming too dry and waited to see what would happen.

Harvest Results in Calgary's Short Season

The result was much better than I expected. After about six weeks, the green onions had grown to about the same size as the ones I normally buy at the grocery store.

I was able to harvest plenty of fresh green onions from the roots I might otherwise have thrown away. For a short growing season like Calgary's, I was very happy with the result.

And the best part? This was not just a one-time harvest. I started this project in the spring, and I am now enjoying my second harvest.

This simple experiment taught me that gardening does not always have to start with seeds. Sometimes, a little creativity can help us make better use of the food we already have.

My Simple Tips for Success

If you want to try this method, here are a few simple tips based on my experience:

  • Select Quality Roots: When buying green onions, choose ones that are fresh and have long, healthy roots.
  • Proper Cutting Size: Leave about 5 cm (2 inches) of stem above the roots to keep the root section intact.
  • Plant Deeply: Plant the root sections deep enough so that only the very top of the stem is visible above the soil.
  • Soil Moisture: Keep the soil from becoming too dry, especially during warm or dry weather.
  • Sunlight: Ensure the planted roots receive sufficient daily sunlight.
Healthy green onions grown to full market size six weeks after planting from roots

Final Thoughts

This is not a professional farming method. It is simply something I tried in my own backyard garden, but for me, it worked surprisingly well.

A bunch of green onions bought on sale at the grocery store became the beginning of another harvest. Every time I harvest them, I think about my grandmother and the winter green onions she used to grow. Sometimes, the simplest gardening ideas can bring back the best memories.

🔗 How to Store Harvested Green Onions for a Long Time

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