How To Kill Grass In Flower Beds Without Killing Flowers (Organic)

how to kill grass in flower beds

Are we still stuck asking how to kill grass in flower beds? By making your all-natural herbicide, you can avoid the use of chemicals. Put together a spray bottle that contains 1/4 cup of vinegar, 1/4 cup of table salt, and 1/4 cup of dish soap. Sprinkle the mixture over your plants. The vinegar kills the grass, while the salt prevents it from growing; the home made weed killer mixture is also a weed preventer.

No matter how much you plan, the flower bed will still grow some annoying grassy weeds. People are also worried about using harsh chemicals toxic to waterways and may have adverse side effects on their lungs.

Weed control is an important part of home maintenance. Your plant beds will look better and it’s healthier for your flower plants if you keep unwanted grass out of them.

Here are ten proven organic methods of killing grasses. I’ll offer a few quick and organic grass killer strategies.

No matter how much you plan, the flower bed will still grow some annoying grassy weeds. People are also worried about using harsh chemicals toxic to waterways and may have adverse side effects on their lungs.

  • Using your hands to extract grass
  • Pour boiling water onto the grass (A bit risky)
  • Spray the grass with a vinegar mixture
  • Sprinkle lemon juice on the grass
  • Soap
  • Sheet composting
  • Solarising
  • Cover the flower’s bed with mulch
  • Corn gluten meal
  • Vodka (No, not trying to get them high and take advantage)

Digging up and killing weedy grass is more difficult than it sounds. Thus, whenever you see unwanted grass in the garden, you should remove it immediately. For lawn grass, If your lawn is too small, you can use a hand-tiller to mow the grass, use sod cutter for bigger lawns. Boiled and salted water is a great natural way to eliminate grass weeds. Plenty of non-toxic organic weed killer methods exist.

Let’s get into the details.

Use Your Hands To Extract Grass

Traditionally grasses are removed from a garden by hand as part of garden weeding. Hand removal is an environmentally friendly option for a small amount of soil contamination. For large gardens that are full of grass, it’s not practical to hand-mow the grass.

Pour Boiling Water Onto The Grass

YouTube video
  • Put a pot of water on the stove, pick up the pot and carry it to the flower bed, directly pouring the water onto the grass.
  • Pour boiling water over it, as well as its roots to kill grass seed before they sprout..
  • Always handle the water with extreme care, as you could burn yourself if you spill it on yourself.

Spray The Grass With Vinegar Mixture (Natural Selective Herbicide)

Mix 1 gallon (3.8 l) of white vinegar and 1 cup (240 ml) of table or rock salt to create a natural vinegar mixture that is supposed to kill your grass. The blend should be poured into the reservoir of the garden sprayer and then added in one tablespoon (15 ml) of dish soap. Irrigate the lawn with the sprayer directly. Spray vinegar onto the grass, and it will die. At the same time, it may need multiple applications, though.

Sprinkle Lemon Juice On The Grass (Natural Selective Herbicide)

If you want to kill your grass without using chemicals, lemon juice is a possible alternative. Spray the grass with lemon juice and wait 1-2 days to check on it. It should be dead by now. If that doesn’t work, try it again until you get the results you want.


Waxy and hairy weed surfaces are vulnerable to desiccants when the oil in soap breaks them down. An extra boost to these solutions can be provided by adding a few drops of liquid dish detergent to the vinegar or vodka. The soap also helps you keep track of what you’ve sprayed by making your leaves shiny.

Sheet Composting

Sheet composting or sheet mulching is a good way to kill the grass. Lay a layer of cardboard or newspaper and mulch on top of your grass. Damp everything down and place another layer of grass clippings on top. This will suffocate and kill the grass while enriching the soil over time.


A fantastic, earth-friendly method to kill your grass is to solarise it, which is the process of using the sun’s rays to exterminate pests like weeds, bacteria, and insects. It’s quite speedy, too.

When preparing your soil for solarization, remove any debris and vegetation and then soak the soil thoroughly. Next, put plastic wrap over the surface and leave it there for at least four weeks (ideally, six).

The sun’s heat gradually cooks your grass to death over the four- to six-week period. If you want to make a walkway or a garden bed, you can use the dead grass to either clear it away or use it as compost. They also may (but are not guaranteed to) kill the roots.

Cover The Flower Bed’s Soil With Mulch

Cover the flower bed’s soil with a 3-inch layer of mulch to prevent grass from growing back. Landscape fabric is a viable alternative, but it will create more work overtime because it tends to tear and weeds sprout on top of it. To avoid germination of grass seeds, use wood chips, shredded leaves, or compost.

Corn Gluten Meal

Corn gluten is a popular organic option used to suppress crabgrass and other weeds in the lawn care world. Theoretically, this substance can be used to thwart crabgrass in the garden, but it is ineffective against turf grass that has taken root. After harvest, spread the meal to prevent the spread of late-season weed growth.


A shot of vodka with 2 cups of water and a few drops of dish soap will dry out sun-loving weeds. It doesn’t work on shade-loving weeds. Protect desirable plants from vodka’s evaporation using plastic bags.

Many of us are accustomed to spending hours in the flowerbeds removing grasses. Methods that produce results quickly are difficult to achieve, whereas less time-consuming approaches may take a year or more to deliver results.

  • Do not introduce grasses into the garden via low-quality seed mixes or improperly composted manure.
  • Ensure Soil Nutrient balance. Plants prefer balanced soils; weeds prefer unbalanced soils.
  • Keep the soil beneath your seedlings covered with a thick layer of mulch to encourage healthy growth.
  • Plant densely and shade the soil with polycultures of different plants to keep the weeds at bay.
  • Use a sharp hoe and cut off grasses just below the soil surface. Ineffective for annual weeds, but less work than hand pulling. It will weaken perennials over time.
  • Spray grasses with boiling water (an only fair pretty bit of for small areas) or horticultural vinegar (10-30% – can burn your skin but works better).
  • Before you start, you should first locate any buried irrigation systems to avoid damaging them.
  • Look for signs of the grass browning and dying.
  • Dig up the plant from your garden once the grass has appeared entirely dead for a few days.

There are several unruly perennial and annual grasses, such as crabgrass, that can be garden enemies. So, here are the most common weeds. Knowing a bit of each weed can help you pick your battles.

Crabgrass (Digitaria species)

Crabgrass is a weed that many homeowners despise because it can root at stem nodes; cutting it back only encourages more growth. Crabgrass is best removed by digging it out completely.

Lambsquarters (Chenopodium album)

Lambsquarters is an annual weed. It carries viruses that can infect other plants in your garden. It also dries out your soil. It’s easy to infest your garden with thousands of seeds per plant. This weed attacks legumes.

Nutsedge (Cyperus esculentus)

Nutsedge is a perennial sedge that spreads via seeds and rhizomes. They spread horizontally under the soil surface, forming extensive weed colonies that can last for years.

Creeping Charlie (Glechoma hederacea)

The invasive perennial weed is a close relative of mint. Creepy Charlie is a weed that spreads by seeds, roots, and rhizomes, like nutsedge or crabgrass.

Common Ragweed (Ambrosia artemisiifolia)

Common ragweed is an annual weed found in garden waste areas. The pollen from this weed causes most cases of hay fever.

Plantain (Plantago major)

Common plantain (Plantago lanceolata) is a perennial weed that spreads by seed. Plantains spread via seeds dispersed by tiny flowers on narrow stalks. Neither the common nor the narrow-leaf plantains are related to the banana-like fruit popular in Central and South America.

  • Plantain accumulates calcium, sulfur, magnesium, manganese, iron, and silicon.
  • Plantain is both edible and medicinal.
  • Plantain benefits the soil if left to grow naturally.

Chickweed (Stellaria media)

Chickweed is a weed that spreads thousands of seeds per plant, lasting up to eight years in the ground. Garden beds and heavily tilled areas have chickweed, indicating low fertility.

  • Chickweed is a nutrient accumulator.
  • Chickweed attracts pollinators seeking nectar in spring and early summer.
  • Chickweed has edible and medicinal benefits.
  • If left to grow and die naturally, chickweed benefits the soil.

Dandelion (Taraxacum officinale)

Dandelions are perennials that reproduce by seed. They develop deep tap roots that are, according to Dow AgroSciences, dug out completely to eradicate. The weed is edible and rich in vitamins and minerals.

While loosening the soil, dandelion roots accumulate potassium, phosphorus, calcium, copper, iron, magnesium, and silicon. If left to grow and die naturally, dandelion benefits the soil.

Here’s some more interesting grasses you can plant in your property.

  • Weeds compete for water, light, and nutrients with garden plants. They have more aggressive root systems. This means your flower plants will either not thrive or die due to weed competition.
  • Weeds are known to spread plant viruses, and pests like whiteflies and spider mites are drawn to the lush canopies they provide.
  • Weeds can ruin harvesting, especially for low-growing leafy crops. Picking and separating weeds from your intended yield takes time and effort.
  • Some weeds have thorns that make gardening unpleasant.
  • Weeds make our gardens look unkempt.
  • They can aggravate allergies.

A lush, green lawn is gorgeous, but the same grass growing in your flower beds can be a nightmare to fight. Here are some tried and true weed control methods.

  • Cultivate and dig weed seeds to bring them to the surface.
  • Mulch attracts crickets and carabid beetles that eat weed seeds. Use wood chips, bark nuggets, straw, or pine needles to keep the mulch coming to smother out weeds. Plant or mulch in areas where the weed seeds first germinate.
  • Heat is the key to composting weeds. Plant some compost and chop off their heads. Destroying microscopic organisms in weed species compost is a common practice.
  • Cut back perennial weeds like bindweed to reduce reseeding and growth.
  • Enclose the soil between plants to shade out emerging weeds.
  • Put soaker or drip hoses under mulch to allow plants to get more water.
  • Mind the gaps between plants. Tightly packed plants prevent weed growth.
  • Plant companion trees in between.
Final Words

Killing Grass In Flower Bed Without Killing Flower Plants is an excellent way to tackle the weed problem in your garden.

By getting rid of your grass organically, you can limit your family’s exposure to chemicals, reduce your environmental impact, and save on money and time. Your verdant landscape doesn’t have to be covered in regular grass; there are many alternative lawn materials. First, get to know the best ways to kill your grass. Boiled and salted water is a great natural way to eliminate weeds.

Homemade herbicides can effectively kill grass and preserve your flowers when you use the right ingredients and proportions. And this is how to kill grass in flower beds.

About The Author

Leave a Comment

Your email address will not be published. Required fields are marked *