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This is my new favorite way of planting onions. Last year, I grew the biggest onions in my life. This year, I’m going to try and beat them. And here’s how. Get some onion starts, gloves, a triel, and fertilizer. Dig out a trench with enough room on both sides to plant some onions. Then, fill it with organic fertilizer, ideally high in nitrogen and phosphorus. Those are the first two numbers on most fertilizer bags. The goal is to get as many leaves as possible before your onions start to bulb, because each leaf adds one layer to your onion. Cover your trench and lay your onions out 6 in apart on both sides. And don’t plant them too deep. Only plant about an inch deep. This helps them develop better bulbs. As they grow over the season, the roots will reach out and access all of the fertilizer you’ve added to your trench. And that’s why

32 Comments

  1. Bigger is not always better, especially not with tasty stuff. And also super unpractical, how often you need an onion of the size of a melon… i hope you have at least a good recipe for french onion soup. And of course enough onion powder to make up for the big watery boring onion ^^

  2. The majority of my onion sets bolted… 😢 I let one of my Walla Walla sweets go to seed so I can go back to seeds next year.

  3. Where can I get onion starts like that? I have tried with sets and with some starts that were way less beefy than the ones you planted. I also live in Northern CA so I plant mine in the latter fall then you do in Southern CA.

  4. This year, I went for smaller onions. Pearl up to about 3" bulbs. Just for grilling, and canning. I'm still harvesting onions, because I planted them everywhere. No onion bed. Just in beds with everything else.

  5. I "grew" onions this year. Chucked em in all my pots… the only ones that did well were alone so they got less water xD
    I always do better growing from seed so next time Ill try my own starts with your advice

  6. I mean just use a grandmaster sprinkler and you'll have some weighing a couple hundred pounds or kgs

  7. I have to replace the top 12 inches of soil in my planters before planting my winter starts. This soil I have in their is terrible (it was donated to us by the city of Oakland. ) What soil would you recommend?