Baking soda, that same white powder chilling in your kitchen cupboard, is more than just a sidekick for baking cakes or scrubbing sinks. It’s got this unexpected magic that kicks in the moment you take it outside. Your garden, believe it or not, is where it truly shines. Once you learn how baking soda can supercharge your garden this summer, there’s no going back. It’s like unlocking a gardening cheat code, and trust us, your plants will thank you. Below are some of the ways you can use baking powder in your garden:
Controls Pests Without Harming the Soil or Plants
Bugs are part of nature, but that doesn’t mean they’re invited to snack on your garden buffet. If you’re into eco-friendly gardening (and who isn’t these days), baking soda spray might be your new best friend.

A simple mixture of baking soda and water can effectively repel pests like aphids and spider mites, without turning your garden into a chemical war zone. It’s gentle, natural, and still gets the job done.
Keeps Fungal Diseases from Ruining Your Plants
You water your plants, talk to them, and give them sun—and then, powdery mildew or black spots show up uninvited. It’s super frustrating. Thankfully, this is another area where baking soda steps in like a pro. Stir a tablespoon into some water, toss in a drop of soap, and spray away. This easy fix is one of those fungal disease prevention tricks that actually works. Your roses and zucchinis are about to breathe a sigh of relief.
Adjust Soil pH for Healthier Growth
Soil pH isn’t something you see with your eyes, but your plants feel it. If things are a bit too acidic, your poor spinach might be struggling in silence.

Baking soda won’t permanently fix the soil, but it can nudge it toward alkaline just enough to help those delicate plants find their groove. It’s a great little hack for soil pH adjustment—especially if you’re not ready to shell out for full-on soil testing kits just yet.
Kill Weeds Without Nuking Your Lawn
Nobody likes weeds, but nobody likes harsh herbicides either. Good news! Baking soda is tough on weeds, especially the ones poking through your sidewalk or patio cracks. Just sprinkle it right on top and it’s done! This trick for killing weeds won’t mess with your grass or flowers (as long as you aim carefully). It’s cheap, it works, and it’s kind of satisfying to watch them wither away naturally.
Deodorize Your Compost Bin Like a Pro
If your compost bin has developed a smell, let’s say, “less than pleasant,” you don’t have to suffer through it. A light sprinkle of baking soda helps neutralize strong odors without slowing down the decomposition process.

It’s an easy solution for anyone composting at home, especially if you live in a small space or a hot climate. Consider this one of those easy but underrated vegetable gardening hacks that make summer gardening more enjoyable.
Keep Your Cut Flowers Looking Fresh and Fancy
This one is a little off the garden path, but totally worth it. If you’re bringing in fresh blooms to brighten up your space, baking soda can keep them alive a bit longer. A tiny pinch in the vase water slows down bacterial growth and keeps those petals perked up. It’s not one of the classic pro gardening tips, but it’s definitely one of the cooler ones you can use inside the house.
Give Disease-Prone Plants a Fighting Chance
Some plants are just drama queens when it comes to disease. Looking at you, roses and grapevines. If you’ve got plants prone to disease, they’ll need a bit of extra love.

A weekly misting with a diluted baking soda solution can help stop mildew before it takes hold. Think of it like a protective bubble. Your plants get to stay strong, pretty, and productive all summer long.
The Pantry Staple That’s Basically Garden Gold
Who would’ve thought that something as basic as baking soda could wear so many hats in the garden? Now that you’ve seen how baking soda can supercharge your garden this summer, you can start putting it to work. From pest control and soil tweaks to keeping flowers fresh and compost smelling fine, it’s a must-have. Try a few of these tips out and watch your garden. Thank you.