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Roses are picky little things. They look beautiful when they’re happy — but when they’re not? Tiny blooms. Droopy stems. Leaves that look like they’ve given up on life.
I’ve learned a lot the hard way growing roses. But the best trick I’ve picked up didn’t come from some fancy garden shop. It came straight from my kitchen cabinet.
If you want bigger, better rose blooms without spending extra money — grab the baking soda.
Yep. Baking soda.
Why Baking Soda Helps Roses
Roses love slightly alkaline soil — not too acidic, not too sweet — just balanced.
Sometimes soil gets a little too acidic from rain, mulch, or even fertilizer build-up. That’s where baking soda comes in. It helps balance the pH around your roses and keeps fungal diseases like powdery mildew away.
Healthier roses = bigger blooms.

How I Use Baking Soda On My Roses
I keep it crazy simple. No weird measuring spoons or garden gadgets.
1. Baking Soda Spray
- Mix 1 tablespoon of baking soda into 1 gallon of water.
- Add a tiny drop of dish soap (it helps it stick to the leaves).
- Pour it into a spray bottle and mist the leaves — top and bottom — every couple of weeks.
- This helps prevent mildew and keeps the leaves clean and healthy.
2. Sprinkle At The Base
For a quick soil boost, I sprinkle about a tablespoon of baking soda around the base of each rose bush. Then I water it in well.
Don’t overdo it — once a month is plenty.
Bigger Blooms The Easy Way
Since I started doing this, my roses look like they’ve been living in a fancy estate garden. They bloom bigger, stay healthier, and give me way less trouble.
And the best part? No expensive rose food. No mystery garden potions. Just a box of baking soda I already had sitting in the pantry.
If your roses are struggling or blooming small, give this trick a try. Sometimes the simplest things make the biggest difference.