How to Start Growing Onions in wet weather in cell trays with Video

12th Mar 2024

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Last year our Onions rotted in our Raised Beds. It was just too wet constantly outdoors so I don’t want the same thing happening this year. I’m determined to harvest some onions this year so I need to try a different approach.

This year I am going to start our onion sets off in a cell tray so they can build strong roots and then be transplanted outdoors into raised beds when the weather is less wetter.

I’m also going to try in onions in a deep pot just in case it’s too wet again outdoors.

I’m determined to get some onions this year!

When to Plant Onions 🧅

In the Ground: Late March to April, when there’s no longer going to be frost.

In Cell Trays: Early March to April.

When to Harvest Onions

Harvest: Early July to Late August

How to Grow Onions in 3 Easy Steps

📋 You will need:

1. Buy Onion Sets.

I bought these onion sets or bulbs from the garden centre but they are also available online from Amazon.

2. Cell trays or small pots,

3. An un-heated Greenhouse or mini greenhouse with a cover.

Step 1 – Check your Onions

Open the bag and put the loose onions in a tray so you can remove any mouldy ones.

Step 2 – Plant your Onions

Start with one Onion bulb and push it into the soil with the tip facing to the sky. The bulb only has to be pushed into the soil until it stands upright and is not covered totally by soil. It’s like you’re placing them on top of the soil.

Video – How to Plant Onions in trays

Watch the Video here

https://videopress.com/v/m44uOV5z?resizeToParent=true&cover=true&preloadContent=metadata&useAverageColor=true

How To plant Onions in cell trays

Step 3 – Water Onions

Water well as this activates the growing of the shoots and roots. Then put in an un-heated greenhouse or mini greenhouse with cover.

I’m Growing Onion- Hercules F1

Hercules F1 variety of white onion is a strong flavoured onion.

This variety has an RHS garden or merit award meaning it is good for growers at home or allotments. It is also creates high yields and is a great storer.