Buttermilk Spray for Plants | Benefits of Buttermilk Spray

Last Updated: 18.10.2023
Dhruvdeep Singh
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Meet Dhruv, a writer and nature lover from Amritsar, Punjab, who fell in love with gardening during the lockdown. With a B.Tech in Computer Science and over four years of writing experience, he brings a tech-savvy perspective to gardening. Dhruv's articles are a journey into the world of plants, offering exciting adventures for fellow nature enthusiasts.

Buttermilk Spray for Plants is a homemade trick that you can use in your garden in a variety of ways. Check out its best usage and advantages!

The presence of probiotics in buttermilk makes it one of the most potent tools that you can use against fungal infections! Let’s have a look at more details on how to make Buttermilk Spray for Plants and its benefits!

Have a look at bavistin uses for plants here

Buttermilk Spray for Plants – Why it is Good?

Buttermilk Spray for Plants

Thanks to the probiotics, buttermilk works wonders for the garden and potted plants as it protects them from fungal issues and diseases like powdery mildew, and blossom end rot. Buttermilk is sprayed majorly on the foliage of the plants to dislodge any fungal infection and insects. It also enriches the plant with some beneficial nutrients.

Apart from working as a natural fungicide, it is a good substitute for uranium and phosphate-rich fertilizers for vegetable plants.

Benefits of Buttermilk Spray for Plants

1. Buttermilk is an effective organic fungicide that prevents plants from fungal diseases like powdery mildew, yellow rust, and white rust.

2. Buttermilk is a rich source of calcium, nitrogen, and phosphorus. It provides essential nutrients and stimulates better growth.

3. Blossom end rot is common in vegetable plants like squash, tomatoes, and peppers, which is caused by a deficiency of calcium. Buttermilk spray is a great way to enrich plants with calcium and other nutrients.

4. It acts as a nutritious feed and helps produce profound blooms, bigger-sized vegetables, and fruits. This spray does wonder especially for rose and curry leaf plants.

How to Prepare Buttermilk Spray for Plants?

  • Mix 4-liters of water with 1-liter of buttermilk.
  • Stir the solution well and fill it in the spray bottle.
  • Shake the solution well prior to application and spray it on the foliage. Use it more during monsoon, as plants are most susceptible to fungal issues during the wet environment.

Some Important Points to Consider While Using Buttermilk Spray

  1. Use sour buttermilk for older and established plants. For the younger saplings, use fresh buttermilk.
  2. You can re-apply buttermilk spray in 10-15 days of interval.
  3. Some gardeners prefer putting a copper wire in the buttermilk for a couple of hours to make the buttermilk sourer prior to the application.

2 thoughts on “Buttermilk Spray for Plants | Benefits of Buttermilk Spray”

  1. Hello,

    I am intrigued by this use of buttermilk as a probiotic & fungicide for plants.

    I live in the state of Virginia in the USA. It is somewhat difficult to find buttermilk in grocery stores in my area, so I use a substitute for baking/cooking recipes and wonder if either of these methods would yield the same benefit to plants.

    The buttermilk substitute recipe is 1 tablespoon (15 ml) either vinegar OR lemon juice in a measuring cup then stir in enough milk (225 ml) to make 1 cup (240 ml) buttermilk. Stir the two of these together and let stand for a few minutes to thicken a bit. Stir well again and use in your recipe the same way you use regular buttermilk.

    Have you used a buttermilk substitute in your Buttermilk Spray for Plants? I would like to know if it is effective. I don’t have a plant that has a fungus problem so I don’t have a control to test it. If you care to try it, I would like to know if it is effective.

    Many thanks for your post! Best wishes to you.
    Theresa Day, Hampton, Virginia USA


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