Keep Weeds Under Control (Without Weed Killers)

How to get rid of weeds without resorting to chemical killers

August 15, 2018

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Dealing with weeds in the garden? Their often persistent nature can make for a truly frustrating experience. In this short video, we share our top tactics for keeping weeds under control in your vegetable garden—without resorting to chemical killers.

From puny annual weeds that can be dispatched with a hoe to more troublesome perennials that need a more considered strategy, there are ways to win the war on weeds.

Annual Versus Perennial Weeds

Annual weeds germinate, flower and set seed in one season, while perennial weeds continue growing for many years. Both kinds present their own challenges, but they can be kept under control—without resorting to using herbicides.

Regain control of a garden that has become weedy by cutting or mowing weeds to the ground. Cover them with a light-excluding fabric, thick black plastic, or organic mulch such as compost or leaf mold to starve the weeds of sunlight. You could also use cardboard; remove any tape or staples, and lay the sheets of cardboard with generous overlaps to make it difficult for weeds to push up. Weigh the cardboard down to keep it in place, and replace it when it rots down.

Perennial Weeds

Perennial weeds with deep or spreading roots such as bindweed, ground elder and nettles may take a year or more to die off completely, but once they do they will help improve the soil and feed the plants that follow.

Act fast to remove any weeds that make it to the surface. Dig them out with a trowel or fork. Fragments of perennial weed roots can easily regrow, so try to get all of the roots. Only add perennial weeds to your compost pile if you have drowned them in a bucket of water for at least a month first. They should have turned into sloppy goo which can then be poured over your compost.

Hoe weekly with a sharp hoe to keep emerging annual weeds under control. Aim to hoe on a windy or sunny day, in the morning if possible, so that the weed seedlings quickly shrivel up and die. Weeds will quickly spread if they get the opportunity to produce seeds, so always aim to remove weeds before they flower

Organic mulches like compost and leaf mold not only feed the soil, they can also help to suppress weeds. 

If you won’t be growing vegetables in an area of ground for a while, sow a cover crop to crowd out weeds and add valuable organic material. Fast-growers like mustards may be sown as late as fall to produce lush foliage in a matter of weeks. They can be dug up or dug in before planting the next crop.

Intensive planting with vegetables such as potatoes that produce lots of foliage will prevent light from reaching the ground and help keep weeds in check.

Check new plants for weeds, and make sure that any bought-in manure or compost is well-rotted and free of weed seeds too. Cover compost heaps and potting mixes to prevent wind-blown seeds from taking root. And keep tools and boots clean to minimize the spread of weeds. 

See more about identifying your common weeds in the garden and lawn.

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2019 Garden Guide

Reader Comments

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We're killing

My method isn't exactly done by just wedding but my Master Gardener said my method was ok. First I use my weedeater right down to the ground then I use 9 % pickling vinegar. With my new home, I wanted to design my yard myself and didn't want any lawn. I fought weeds in my 50x33 foot space until it became a nightmare. As I am a retired person and on a strict budget I have only been able to do a few feet at a time. A friend suggested vinegar with a few drops of dish soap in it. It works wonderfully. I spray it on in the morning in the sun and within a few hours the weeds are not only dead but shriveled and brown. I then covered the area with professional weight ground cover cloth and mulch. I have beautiful flower beds, 50 feet of roses and perfect weed free walkways. All without using a chemical weed killer and hurting my soil. I go out every day or two with a spray bottle to catch anything that is trying to get a toe hold.

Not all weeds are bad weeds

So I keep hearing that bees love dandelions but people have such a hatred for them, even though, as kids we use to make a wish and blow out the dried up dandelions and watch them parashoot with a smile on our faces. as a kid, i couldn't understand the difference between a dandelion and a merigold, they look so much alike yet people kill the dandelion that bees love and they go and buy pesticide filled marigolds that most nurseries sell and kill bees. why so much hatred for the dandelions?

Dandelions

Did you know that dandelions are also a great pre-biotic for your gut bacteria? (Pre-biotics are as important as pro-biotics.) The roots are great for that.
I'm going to start digging up the dandelions to eat the roots.
You're right: not all "weeds" are bad. Many are medicinal.

Buttercups battle

We live on 7 acres and have a constant battle with buttercups that we are losing every year. We lay down plastic, cardboard, mulch, etc it always finds a way back covering bigger and bigger areas. I gave up thinking we could eliminate it but how can we keep it at bay? It creeps into everything.

buttercups

Have been told geese will keep buttercups under control.

land that has been for hay

I have a lot of land to remove the weeds so I can grow what I want to grow. The current hay is also not very good hay.
I am considering flame weeding. What do you think?

weeding the garden of weeds

Some weeds are for the good and can be medially good.. I hate weeds but we need to remeember that all weeda are not bad weeds

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