How to Change pH of Water for Plants

Just like humans, plants also require a specific pH balance to thrive. The pH level of water affects how much nutrients plants can absorb and can ultimately impact their growth and health. If the pH level of the water is not suitable for the plant, it can lead to poor growth, discoloration of leaves, and in severe cases, death. Therefore, it's important to understand how to change the pH of water for plants. Here are some methods to adjust the pH level:

1. Use Vinegar or Lemon Juice

Vinegar and lemon juice are acidic solutions that can decrease the pH level of water. To use vinegar, add one teaspoon of white vinegar to one gallon of water, and for lemon juice, add a few drops of concentrated lemon juice to the water. Be cautious not to add too much because over-acidification can harm the plants. It's essential to measure the pH level before and after adding any acidic solution to avoid over-acidification.

2. Add Limestone or Dolomite

Adding limestone or dolomite to the water can increase the pH level of the water. Limestone or dolomite is made up of calcium and magnesium carbonate that neutralizes the acid in the water. It's recommended to add one tablespoon of limestone or dolomite to one gallon of water. However, if the water's pH level is too low, it's best to add dolomite instead of limestone because dolomite contains high levels of magnesium, which is more effective in raising the pH level.

3. Use Baking Soda

Baking soda is another cost-effective way to increase the pH level of the water. One tablespoon of baking soda per gallon of water can elevate the pH level. However, it's crucial not to add too much baking soda because over-alkalization can also harm the plants. Make sure to measure the pH level before and after adding baking soda to ensure an appropriate pH balance.

4. Test and Adjust the pH Level Regularly

It's crucial to test the pH level of the water regularly and make adjustments as necessary. To test the water's pH level, use a pH testing kit, which is widely available at gardening stores. The ideal pH level for most plants is between 6.0 and 7.0. If the pH level is too low, use one of the methods mentioned above to increase the pH level, and if it's too high, add sulfur or other acidic solutions to lower the pH level.

The Bottom Line

Changing the pH level of water for plants is not a complicated task, but it's necessary to ensure that the pH level is appropriate for the plants' optimal growth and health. It's recommended to test the pH level regularly and make changes as necessary. When adjusting the pH level using the methods above, be careful not to overdo it, as over-acidification or over-alkalization can harm the plants.