17 Baking Soda Uses in the Garden | Baking Soda for Plants

Do you know you can use baking soda for plants? Here are 17 hacks that will teach you how to use baking soda in the garden effectively.

Baking soda is used in cooking, in cosmetics and for the maintenance of the house. But its role does not end there: Baking soda for plants can be the most effective solution for many problems in your garden.

baking soda hack for garden

100% ecological, baking soda can be used at any time of the year, in every corner of the garden. It is biodegradable and nontoxic. It can be a slight replacement for the pesticides, fertilizers and other chemicals you use in your garden.

Baking Soda Uses in the Garden

1. Houseplant Cleaner

cleaning houseplant

It is important to regularly clean the foliage of your houseplants to remove dust and grease, to promote photosynthesis. For this, our recommendation for you is to carefully move a soft, lint-free cloth moistened with the solution of water and sodium bicarbonate (a pinch of baking soda in one liter of water) on the surface of leaves (top and bottom).

2. Clean Garden Furniture

Add 1/2 cup baking soda and one tablespoon dishwashing liquid in a gallon of warm water. Take a sponge and clean the garden furniture with it and then rinse it with clear water.

3. Give Plants a Boost

Mix 1 teaspoon baking soda, 1/2 teaspoon clear ammonia and 1 teaspoon Epsom salt in a gallon of water. Mix well and give each plant about a quart of the solution. This solution will work as a fertilizer, the plants that are looking dull, and growing slowly will perk up, rejuvenate their growth and become lush green.

4. Keep the Smell of Compost away

To keep the smell from compost pile under control, use a small amount of baking soda to eliminate odor. This helps prevent acidity build up.

5. Clean Bird Bath and Pots

cleaning clay pot

To clean your bird bath and pots, sprinkle baking soda on it and clean with damp cloth or scrubber. After cleaning, rinse thoroughly and allow them to dry out completely.

6. Get Rid of Slugs

Want to get rid of slugs? Simply sprinkle baking soda on them.

Also Read: Slug Prevention Tips

7. Encourage Plants to Bloom

Dissolve 1 tablespoon of baking soda into 2 quarts of water and use this to water your flowering plants to encourage blooming.

8. Sweeter Tomatoes

sweeter tomatoes with baking soda

Sprinkle a small amount of baking soda around the base of your tomato plants. The baking soda will be absorbed into the soil and lowers the acidity level of tomatoes, thus gives you sweeter than tart flavor.

Also Read: Do these 8 Things to Grow the Best Tomatoes

9. Acidic Soil

If you have acidic soil, sprinkle a small amount of baking soda on it (application rate varies according to the pH level). When digging, mix it and water and retest your soil after a few days. Do this in the small area first. You will be impressed by the results: Fewer weeds, more flowers, and high-yield garden.

10. Kill Cabbage Worms

Mix equals part of the flour and baking soda and dust that on infected plants. The worms that inflicting your brassicas will ingest the baking powder mixture while eating the leaves and die soon.

11. Test Soil pH

Take some soil on a dish and make it muddier. Sprinkle a small amount of baking soda onto the soil. If the combination bubbles, your soil is acidic.

Also Read: How to Check Soil pH at Home

12. Use it as a Pesticide

Use baking soda to effectively reduce infestations of many insects such as aphids, scales, and the spider mites. It may not kill them all but have a repellent action and halt their progress.

Mix 1 teaspoon of baking soda and 1/3 cup of olive or mustard oil. Measure out 2 teaspoons of this mix and add it to 1 cup of water. Mix it well together and spray it on the infected plants.

13. Prevent Mildew and Other Fungal Diseases

Prevent Mildew and other Fungal Diseases with baking soda

Spraying baking soda on the leaves makes the surface become less acidic and limits the ability of fungal spores to grow. To prepare this, mix 1 teaspoon baking soda and a few drops of liquid soap in 1 liter of water and spray the solution on the infected plants.

This preventive and curative treatment is effective in the vegetable garden, on the fruit trees, rose bushes, vines and climbers and flowers.

14. Weed Killer

To fight effectively against the weeds that invade walkways, edges and garden beds in an ecological and economical way, baking soda is best. It has the enormous advantage of being completely biodegradable and nontoxic. You can sprinkle it on the tufts of weeds. It will burn the foliage, and weeds will and disappear in a few days. Doing this regularly can slow down the arrival and growth of those pesky weeds as well.

Also Read: How to Kill Weeds using Vinegar

15. Clean the Walkways

Rinse the surface with sodium bicarbonate water (30 g or 2 tablespoons per liter of warm water). If necessary, add baking powder and scrub with a brush or use a broom with stiff bristle.

Beware not to spill the solution on the lawn and flower beds: An excessive concentration of bicarbonate and hot water can “burn” the plants.

16. For Cut Flowers

keep cut flowers fresh with baking soda

To keep your cut flowers fresh for a long time put a teaspoon of baking soda in the vase.

17. Clean dirty hands

Got dirty hands after gardening? Simply rub baking soda on wet hands and rinse them with water.

Precautions When Using Baking Soda in the Garden

  • Avoid as much as possible to spray directly on the flower stalks and flower buds.
  • When trying any home mix, you should always test it out on a small portion.
  • Also, follow the right dosages because the too strong combination can burn the leaves of the plants.

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baking soda hacks for the garden


  1. Thank you , great tips . I love planting herbs and veg . But insects is a big problem . I’ve tried lots of home remedies , but the insects is bad . They lay eggs on the leaves of my citres trees and curry leaf trees .

  2. I knew a few of them, but I am pleasantly surprised to read about most of the benefits of using soda!
    I did not know it was possible kill cabbage worms.


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