It is important to be frugal when it comes to milk use, though, as overwatering your plants with milk can result in a wilted or stunted plant. Whole milk is always recommended over skim, as skim milk can lead to black rot or soft rot depending on which plants you use to water it.
Finally, because it is milk, it can be a bit smelly to put in the garden!
How to water your plants with milk
Technically any animal milk (cow, sheep, goat etc.) can be used in the garden. This includes fresh, expired, evaporated and even powdered milk.
Of course, alternative milks such as almond and oat do not have the same nutritional benefits, so they would not be very helpful on your cucumbers and basil!
It is recommended to use reduced fat or low fat animal milk options, as these are less likely to have adverse results.
All of these milk varieties must be diluted properly to avoid wilting or rot forming on your plants. The best way to do this is by mixing your milk with water in a 1:1 ratio. Using a spray bottle will help direct the milk mixture straight to the soil and roots.
Alternatively, spray the mixture directly onto the leaves, as they can absorb calcium. Spray a small amount onto each plant leaf and wait for 30 minutes until the liquid is absorbed.
If there is any leftover milk mixture, simply wipe it away with a wet cloth. Leaving additional liquid on the leaves can cause rot to form, so be vigilant with your spraying!
After applying your milk mixture, make sure to avoid using pesticides in your garden. Pesticides will rid your milk mixture of any good bacteria in it, rendering the whole application pointless.
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