How To Plant Corn – Weed-Free!

How to Plant Corn-weed free

I’ve heard from so many people about the back-breaking weeding they’ve either had to do growing up or in their own gardens – and I’ve made it my goal throughout the life of this blog to show that you can grow vegetables without a lot of weeding (see my whole category on weeds here).

I grow corn, beans, and potatoes in large-ish permanent beds (10′ x 20′), and while I’ve written about theses beds within other posts, I felt there was a need for an dedicated post just on how to plant corn to be weed-free all season. There aren’t many things worse for a gardener than trying to find sprouting corn in a sea of weeds – and then trying to free the poor things from them.

Think I’m stretching the truth? Well I’ve got pictures to prove it! I’ve been planning this post since last year – taking pictures of a whole season of planting and growing corn so I could share it with you.

Here are the simple, non-back-breaking steps I take every year to plant a weed free bed of corn:

early spring veg.bed prep

No matter what I do, the weeds come back each winter so that by March, the beds looks like the photo on the left. So, the first step is:

  • Cover the future corn bed with black plastic at least two months before corn planting time for your area, securing it with rocks.

prepping no-till veg.bed

  • When you lift the plastic months later, you will find a pile of dead vegetation that you simply rake up and add to your compost pile.
  • Then spread a 2-4 inch layer of compost over the bed, without tilling. The only time I turn the soil are if I find areas with vole or mole holes – it’s my sad attempt to hinder their movement.

planting corn seeds

  • Make a furrow with a hoe about 4-5 inches deep – this is the only place you break up the soil, and it’s pretty simple with the hoe. Add a line of organic fertilizer in the furrow and partially fill the furrow back to about 1-inch deep. In my 10′ wide bed, I plant 4 rows about 2 1/2 feet apart.
  • Add corn seeds 2-3 inches apart. Seeding fairly thickly like this is my trick to ensure an even corn patch – between corn’s often spotty germination and the birds, I had some empty rows before I started sowing this way.

planted-protected corn beds

  • Lay soaker hoses along each planted row and water the seeds well (lest you think this isn’t important: soakers – or drip sytems – are the only way to not get water between rows…and the weeds that want to grow there).
  • Optional: If you have birds or cats in the neighborhood, covering the beds with chicken wire or whatever you have will help keep the beds pest-free.

sprouting-thinning corn bed

Soon you will see the corn sprout! Sometimes it may take up to two weeks, so don’t worry. You can see here that even with my thicker sowing, there are some large spaces between some of the corn. This is fine, as I planned for it, but if I had sown the seed at the final spacing I wanted, I’d have too much space and would’ve had to re-sow. But that means the next step is what some people find the to be the hardest:

  • Thin the corn to 12-18 inches apart. Yes, you will be pulling sometimes lovely corn and throwing it away. If you’ve read here long, you know this pains me, but it’s the only way to get full sized stalks with full ears – the only way. And it’s better than empty spaces. So bite the bullet and just do it.

weed-free corn patch

Now all that’s left is to water and watch it grow:

  • Water with the soaker hoses for about 4 to 5 hours every 4-7 days deeply to encourage deep root growth (shorter watering every few days results in shallow roots and stalks that will topple when full of ears if a wind comes up). If in doubt, dig an inch down – if it’s moist, the corn has enough water and can wait for a day or more to be watered.
  • You may see a weed here or there (in the photo on the right there’s one in the front) that you’ll need to pull casually as you’re hooking up the soaker hose. At the end of the season the bottom leaves may yellow like mine did after two months of warm, dry weather, but the rest of the stalks are a healthy green with ears growing full, so don’t worry if you see some dead bottom leaves on your plants.

ready to harvest corn bed

This is the full-grown corn patch at the end of the season – the ears are ready for harvesting. Do you see that soil? Yeah – no weeds. No hoeing. No tilling. Lots of corn with very little work – what’s not to love about that?

As far as the varieties of corn I grow, I always plant two beds with three different varieties that mature 2 weeks apart so that we’re not inundated with corn all at once. This gives us about a month of harvest and I can easily prep and freeze smaller amounts and not kill myself processing corn. The last few years I’ve liked ‘Quickie’ as the earliest variety (about 65 days), ‘Bodacious’ for a mid-season (75 days), and Incredible as the tallest, and latest (85 days).

So, there you have it – there is a way to grow corn and not have to spend a lot of time weeding! I do know that some of you don’t want to stop tilling, and if you do, just be prepared for all the weed seeds that germinate from being exposed to the air. I would suggest using newspaper and straw in between the rows so at least you don’t have to spend time weeding the paths.

Do you grow corn? Do you have any tips and techniques to share with us that you like?

Tuesday Garden Party


  1. says

    We haven’t grown corn in a couple of years. But I’m hoping it will make the list next year. I’ll have to try to do it weed free. Thanks for sharing.

  2. Lauren says

    We planted corn for the first time this year. We have small garden space, so I just have 8 plants. I am wondering if I need to somehow assist with pollination and/or something about de-tasseling? I have heard farm kids talk about de-tasseling, but I don’t know if that goes for sweet corn or not.

    • says

      If you have your corn planted in a clump vs. a row, you’ll be okay with wind pollination. If they are in a row, you’ll want to go and shake the stalks on a less windy day after they have tasseled out to make sure they are able to pollinate the cobs forming on the stalks. I’m not familiar with de-tasseling – I think it might be the smaller cobs on the bottom that won’t grow – get rid of them so they don’t take energy from the plant? Obviously, I don’t worry about it. 😉

  3. says

    Oh, so that’s how you do it! I am growing corn this year and I have been watering every other day. The corn is tall and lovely with little corn cobs starting to grow, but some of the tops are toppling over! I see where you say to deep water only about every 5-7 days. I will have to do that next year. Thanks for the tips about weedless growing and deep watering! I added a post in the hop party about our white and red carrots and potatoes grown in the compost heap. Thanks for hosting!

  4. says

    Thanks you for hosting! Your corn is beautiful. We were thinking we need to make another bed for corn, but it may be too late for this year :)

  5. says

    My corn disappeared this year. I think field mice ate it? I’m not sure. I have 2 lonely little corn stalks left after having 2 entire gorgeous rows just a couple weeks ago. Interesting that you post about weeding – I actually talked about that in my post too. I’m going to have to follow some of your suggestions for less weeding or it’s going to take over my life! :-) I don’t mind a little, but it just gets to be too much after a while. :-)

  6. says

    Great info, Jami! I’m going to file this away for the day when I have room for corn! I’m thinking I’ll try some of those techniques for other plants as well, ie, the black plastic idea, thank you :)

  7. says

    I see you’ve joined the no till crowd. I’m not there yet, maybe someday.
    Oh and my mother-in-law gave me a aerogarden for Christmas. I have wanted 1 so much since you posted about yours a few yrs back. There is nothing like easy fresh herbs in the middle of winter.

  8. Teresa says

    I was wondering, after the corn harvest, do you pull up the dead plants? If so, does this deplete quite a bit of soil in the beds? I live in Keizer. My mom always planted part of a fish with each seed and only on the full moon!

    • says

      I’ve heard the fish idea before, Teresa, but never have fish to do that with! I actually don’t pull up the plants until they’re completely dead in late winter – ’cause I’m a lazy gardener and no one really sees the garden. :) I do always let them turn completely brown and just knock them down, though, so by the time I put them on the debris pile, there’s barely any soil.


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