11 Amazing Uses of Baking Soda in Gardening That Few People Know

A lush, organic, and completely natural garden often owes its health to one surprisingly simple ingredient: baking soda. Few people realize that baking soda can help create a thriving garden all year round. This biodegradable, non-toxic substance can serve as a gentle replacement for pesticides, fertilizers, and other harsh chemicals.

If you haven’t yet discovered its many benefits, take a few minutes to learn these practical and eco-friendly gardening tips using baking soda.

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1. Clean plant leaves

For indoor plants to thrive, their leaves need to be cleaned regularly to remove dust and oil that block sunlight and hinder photosynthesis. To clean them, use a soft, lint-free cloth dampened with a solution of water and a pinch of baking soda. Wipe the leaves gently to keep them shiny and healthy.

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2. Promote plant growth

Mix together 1 tablespoon of baking soda, ½ tablespoon of ammonia, 1 teaspoon of Epsom salt, and 1 liter of water. Use this mixture to water slow-growing plants. This homemade tonic helps plants regain their green color and boosts healthy growth.

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3. Get rid of snails and slugs

Snails can be a gardener’s nightmare, devouring young shoots and flower buds. To keep them away, simply sprinkle baking soda around your plants or directly onto the snails. They will avoid any area treated with baking soda.

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4. Encourage flowers to bloom

Dissolve 1 tablespoon of baking soda in 2 liters of water and use this solution to water your flowering plants. It helps stimulate blooming and keeps flowers vibrant.

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5. Grow sweeter tomatoes

Sprinkle a small amount of baking soda around the base of your tomato plants. The baking soda reduces soil acidity, resulting in tomatoes that taste noticeably sweeter than usual.

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6. Eliminate cabbage worms

Cabbage and other leafy greens often attract caterpillars that chew through their leaves. Mix equal parts flour and baking soda and sprinkle the mixture on affected plants. The caterpillars will eat the powder and die shortly after.

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7. Natural insect repellent

Baking soda can help repel pests like aphids, scales, and spider mites. While it might not kill all insects, it disrupts their breeding and discourages infestations. Combine 1 teaspoon of baking soda, ⅓ cup of olive or mustard oil, and 1 cup of water. Shake well and spray on infested plants to protect them naturally.

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8. Prevent mold and fungal diseases

Spraying baking soda on leaves changes the surface pH, making it less acidic and less hospitable to fungal spores. Mix 1 teaspoon of baking soda, a few drops of liquid dish soap, and 1 liter of water. Spray this mixture on affected plants to control mildew and mold growth.

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9. Kill weeds naturally

Baking soda is a safe and effective way to deal with weeds growing along garden paths, edges, and flower beds. Sprinkle baking soda directly on unwanted weeds — it will dry out their foliage within a few days. Regular application helps slow down new weed growth as well.

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10. Keep cut flowers fresh longer

Baking soda isn’t just good for soil-grown plants — it also helps cut flowers stay fresh longer. Add 1 tablespoon of baking soda to 2 liters of water and place your cut flowers in the solution to extend their freshness and color.

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11. Clean your hands after gardening

After a long day in the garden, clean your hands by rubbing them with baking soda and water. It removes dirt and odor while leaving your skin soft and smooth — a refreshing way to end your gardening session!