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How To Grow Onions From Seed Sowing The Seeds [Container Gardening ]
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How To Grow Onions From Seed Sowing The Seeds [Container Gardening ]



Getting Started
Growing onions from seed can be a rewarding process. You’ll need to gather the following supplies:
Onion seeds (your preferred variety)
Seed trays or pots
Seed-starting mix
Grow lights or a sunny window
Compost or organic matter
Garden bed or containers for transplanting
Mulch
Step-by-Step Guide
1. Sow Seeds Indoors
Start your onion seeds indoors about 8-10 weeks before the last expected frost. Fill your seed trays or pots with seed-starting mix and plant the seeds about ¼ inch deep. Keep the soil moist and place the trays under grow lights or in a sunny window.

2. Transplant Seedlings
When the seedlings are 3-4 inches tall and the danger of frost has passed, harden them off by gradually exposing them to outdoor conditions for a week. Then, transplant them into the garden bed or containers. Plant them in rows spaced about 12-18 inches apart, with 4-6 inches between each plant.

3. Prepare the Soil
Onions prefer well-drained, fertile soil with a pH between 6.0 and 7.0. Loosen the soil to a depth of about 6 inches and incorporate compost or organic matter.

4. Watering and Care
Onions need consistent moisture but be careful not to overwater. Mulch around the plants to help retain moisture and suppress weeds. Remove any weeds that appear promptly.

5. Harvesting
Onions are ready to harvest when the tops start to yellow and fall over. Gently pull the onions from the soil and let them cure in a dry, well-ventilated area for a few weeks. Once the outer skins are papery, they can be stored in a cool, dry place.

Tips for Success
Thin seedlings if they become too crowded.
Rotate crops each year to prevent soil-borne diseases.
Use a balanced fertilizer to provide essential nutrients.
With a bit of patience and care, you’ll have a bountiful onion harvest! Happy gardening!
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25 Comments

  1. @boansy1

    Left my onion sow a bit later this year, going to order some mammoths from D.T. Brown.

  2. @EricMowat-t3r

    Ivan made up with video… I am going to plant what ever you plant the day after your videos an see if my veg an flowers. Are anywhere as good as your.. thanks

  3. @annegraham1891

    Can I reuse compost from last year. My tomatoes were a disaster last year and I've chucked away the soil they were in as they didn't look healthy plants.

  4. @carolphillips9441

    Nice one Ivan, I'm sowing my onions over the weekend. Good to see some sowing done, it's been a long time coming, roll on spring 🌼🌱

  5. @timredford6608

    Hi Iven good to see you back on the container garden starting of with the onion sets, 🌰 . Looking forward to seeing your videos for 2025 gardening season. All the very best to you both Tim 👍

  6. @lifestapestry2968

    Sowed my onions back in Sept along with the garlic and planted out in November as I hate gardening in the winter, just too miserable and wet right now..Good luck with your onions Ivan

  7. @christinethompson3579

    Hi Ivan Iv been waiting for you to start some videos showing at the caravan and what a breath of fresh air it is to see you out sowing seeds , it shows that spring is on its way at last. Btw did you cover those cabbages up in the container over winter?

  10. @lee-mccusker

    Hi – been binge watching many of your videos, as I am starting my own vegetable garden this year!

    A question about when to put onion seedlings outside – when can the seedling trays go into the greenhouse? I’m worried about the temperature being too cold, any advice greatly appreciated.

  11. @StevesRepairs

    Thanks Ivan, for this great update and it's really good to see you sowing seeds again at this time of year which will give me a good boost to crack on. Take care and all the best. Stevie

  12. @user-xb7sj2uk4u

    Sorted out my pnion seeds yesterday ready for sowing over the weekend. 😁 Just have to get a cel tray pit of the shed.

  13. @lyndaturner6686

    Hi Ivan Happy New year to you both, I sowed my onions also they are Ailsa Craigs and have them indoors on a small heat mat , I shall watch with interest how mine compare to yours 🤞❤️

  22. @christinebrooks6364

    Hi Ivan, just subscribed to your channel. I have sown my red & white onions seeds end of December and are potted on now in their own modules doing well in my polytunnel. Great video, look forward to watching more. Thanks for sharing and take care 😊

  23. @Nighteyes0001

    Thanks Ivan, good to see you sowing seeds again means spring must be on it's way. I wasn't going to bother this year after last year, but you have now inspired me to get on with it again, so I'll be getting some onions on the go this week

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