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288 onions seeding in one flat?

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288 onions seeding in one flat?

Post  NHGardener on 2/19/2013, 10:31 am

Think I can sow 288 onion seeds successfully in one standard-sized tray? (the kind with the dome lid) They grow like grass, so I'm thinking they can be pretty close together, and separating them to up-pot shouldn't be too big of an issue?

9 per square, 4x8 box, = 288 plants.

I don't see a reason to use 2 trays if one will work.
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Re: 288 onions seeding in one flat?

Post  littlejo on 2/19/2013, 11:10 am

I don't see why it wouldn't work, onions are pretty hardy as far as the root system, and if you are willing to take the time to separate them. You could always take each cell full and dip in water to separate. I've been told to snip a bit of the tops after they get a few inches tall to make them grow better(haven't tried this yet)
You might see if you can find out (on the internet) how the professional growers do it. I just buy them already grown, but I was told at the farm store to snip the tops a little bit when I plant them. I'm going to try that when I plant them.
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Re: 288 onions seeding in one flat?

Post  NHGardener on 2/19/2013, 11:57 am

Waterlogging the soil to separate them - now there's an idea.
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Re: 288 onions seeding in one flat?

Post  littlejo on 2/19/2013, 1:07 pm

I've done this with other plants that the roots were very intertwined.
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Re: 288 onions seeding in one flat?

Post  southern gardener on 2/20/2013, 2:51 am

We were given a bunch of onions that had sprouted and looked like grass. We popped them out of the little 6 packs, and swirled the dirt/roots in a cup of water, they untangled in seconds! We got a LOT of onion starts that way....easy peeeezy!!
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Re: 288 onions seeding in one flat?

Post  NHGardener on 2/20/2013, 3:58 am

Great tip to keep in mind!
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Re: 288 onions seeding in one flat?

Post  camprn on 2/20/2013, 6:22 am

@NHGardener wrote:Waterlogging the soil to separate them - now there's an idea.
This is also what I do. When the onion seedlings in the little mushroom containers looks like grass and they are all ready for transplanting I pop the whole root ball out of the container and put it in a shallow bucket with water and swish it around. This allows any loose mix to come out of the root ball. After gently separating the seedlings and having them in a bunch, I trim the roots to about 2 inches, which makes the transplanting manageable.

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Re: 288 onions seeding in one flat?

Post  cheyannarach on 2/20/2013, 10:10 am

What a great idea, I think I am going to get my onions started today this way!
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Re: 288 onions seeding in one flat?

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