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15 unsuspected ways to use baking soda for gardening

15 unsuspected ways to use baking soda for gardening
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We all have baking soda at home. Although this chemical’s explicit use is supposedly as a leavening agent in baking, many households have found out that it’s incredibly useful for a variety of other purposes as well.

Deodorant, cleaning agent, it can also whiten teeth.

It is also very useful in gardening, so here are 15 of the best ways to use it in the garden !


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For environmentally conscious people, buying chemical pesticides is not their first option. Even if we want to keep insects and rodents away from our garden, we do not want to risk poisoning our soil. Luckily, we can make a natural pesticide using baking soda. Simply mix 1 tablespoon (15 ml) of olive oil, 2 tablespoons (30 ml) of baking soda and a few drops of dish soap in 3.8 liters of water. Put this mixture in a spray bottle and spray on your garden every three days.

Stop ant infestations right at the source

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You can also target the ants directly using a solution of 5 teaspoons (25 ml) of baking soda, 5 teaspoons (25 ml) of sugar and 1 teaspoon (5 ml) of water. Ants will be attracted to sugar and eat it, but the baking soda will kill them. Pour this mixture on each anthills you find and add a little bit of vinegar, it will kill them all.


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If your garden or climate is particularly damp, you may have mushroom problems. Fortunately, baking soda provides a solution! Mix 4 teaspoons (20 ml) of baking soda in 3.8 liters of water, then water the problem areas in the garden.

Check the pH of your garden soil

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Rather than buying a pH kit, you can use baking soda to check how acidic or alkaline your soil is. Take two samples of soil in two different containers and prepare half cup of vinegar (125 ml) and half cup (260 grams) of baking soda. Pour the vinegar into one of the sample and see if it bubbles. If it does, the soil is above pH 7, meaning it is alkaline.  If it does not react, take your other sample and add in the baking soda along with half a cup (125ml) of water. If that one bubbles, the soil is below pH 7, meaning it is rather acidic.

Clean up your garden decorations

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Baking soda does wonders to clean garden decorations without harming the environment! Sprinkle on the surfaces you want to clean and wipe with a damp cloth and your decorations will be like new.

Remove mildew from your plants

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Baking soda can also help you with mildew that attacks your plants. Mix 1 tablespoon (15 ml) of baking soda with 2 ½ tablespoon (38 ml) of horticultural oil in 3.8 liters of water. Put it in a bottle and spray it on your plants to give them a protective layer against mildew.

Make your tomatoes sweeter

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Tomatoes become sweeter when they grow in soil that is less acidic. All you have to do is sprinkle some baking soda lightly on the ground so that they naturally absorb it. Tomatoes will be sweeter!

Make bouquets last longer

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Bouquets of flowers add color to the house, but they fade faster than you would like. Add a pinch of salt and a pinch of baking soda in a vase and add water before putting flowers in it. The combination should extend their life at least for a while.

Put it in compost to reduce bad odor

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Compost is perfect for reducing waste, feeding the soil..., it's good for the environment. However, the process releases bad odors. Fortunately, by adding a little bit of baking soda on top, it will absorb some of the odors and fix the acidity a little. Don't add too much baking soda or you'll slow the decomposition process.

Remove weeds from the paths

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The winding paths we have through our gardens are often beautiful and relaxing to walk through… until they are covered in weeds. Clean the surfaces with 2 tablespoons (30 ml) of baking soda and 946 ml of water, soak a brush in this solution and rub the stains. Be careful not to spill the mixture in garden beds.

To have beautiful flowers

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Some flowers thrive in alkaline soil, like tomatoes. Mix a little bit of baking soda in their water before watering them. When the flowers bloom they will be more colorful and healthier than ever.

Get rid of the crabgrass

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Crabgrass are those annoying and fibrous little chunks of grass that seem to always grow back between sidewalks. To get rid of it, moisten the problem areas and apply a good amount of baking soda to form a paste. Spread this paste in the cracks and you will get rid of the weeds.

Keep cabbage worms away from your plants

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Even if you do not grow cabbages, cabbage worms can wreak havoc in any garden. Mix an equal amount of flour and baking soda, then sprinkle all the plant shoots. If the worms try to eat the plants, the mixture will kill them as soon as they do.

Wipe your houseplants with it

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If you have any big plants inside that gather dust or grime, it can be hard to effectively clean them. To shine them up a little without hurting them, just use a little bit of baking soda and warm water and wipe them gently.

Use it to clean your hands after a day working in the garden

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Gardening is relaxing and rewarding, but after a hard day, hands can be difficult to clean. Wet your hands, then cover them with baking soda and rub, do not hesitate to use a brush, and your hands will be clean.

Source: Homehacks · Photo Credit: Homehacks

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