As autumn approaches, gardeners are being reminded that a common household ingredient could become their secret weapon against plant diseases. TikTok gardening specialist Ish, known online as @gardening.with.ish, has revealed that this staple can be a simple but effective way to protect outdoor plants from fungal infections.
“Baking soda, or bicarbonate of soda, is absolutely fantastic to use in your garden,” Ish said. “Not only does it have antibacterial and antifungal properties, but it can also be diluted into a simple spray to protect your plants from all sorts of fungal infections, like black spot and powdery mildew, which can be such a pain but are easily dealt with.”
To make the spray, all that’s needed is an empty bottle, a teaspoon of baking soda, which costs as 59p in Sainsburys and 500ml of water. Mix thoroughly, adjust the nozzle to a mist setting, and gently spray the solution onto plants once a week if they appear to be struggling.
Ish notes that fungal problems in plants often arise due to environmental conditions, especially as cooler and damper weather sets in during autumn and winter.
He also recommended supplementary measures to prevent fungal growth, such as trimming leaves to improve air circulation and watering directly at the soil rather than on the leaves, reducing dampness that can encourage fungal infections.
Baking soda is a go-to solution for gardeners combating specific fungal problems like powdery mildew. Its alkaline nature creates an environment that inhibits fungal development.
When mixed with water, it works best as a preventative measure, so it’s important to start spraying at the first signs of infection.
However, caution is advised as excessive use can lead to sodium buildup in the soil, which may harm plants.
Additionally, while effective against mild fungal issues, baking soda is not a cure-all. It does not eradicate more serious fungi, such as those responsible for root rot, rust, or black spot.
For gardeners facing persistent or severe plant issues, Ish recommends consulting a professional for tailored advice.
With a simple kitchen staple and a few mindful gardening practices, this autumn could be the season your garden thrives while staying healthy and disease-free.
