o The first step to determining whether or not you should water with vinegar is to test the alkalinity of the soil. You can get a pH soil testing kit at a local garden or hardware store. The soil should be between 5.8 and 6.6 for most plants, but some plants such as rhododendrons prefer a higher level of acidity.
Adjusting Alkalinity with Vinegar
o If your pH is too acidic for your plants, you can adjust it with white vinegar. Mix 1 tablespoon of white vinegar into 5 gallons of water or 1 cup of white vinegar into 5 gallons of water if you are using a hose siphon. Water your plants with the mixture and see if the plants improve.
Acidity Loving Plants
o If you have azaleas, rhododendrons, hydrangeas or gardenias, these plants actually like a higher level of acidity. To water these plants, mix 1 cup of white vinegar in a gallon of water. The vinegar helps the plants absorb more iron as well.
Killing Weeds and Pests with Vinegar
o If you have grass, weeds or other unwanted growth in your garden, pour undiluted distilled white vinegar directly on the growth to kill it. You can also pour vinegar on ant hills or around areas where you have had ants before to keep them from coming back.
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o The acetic acid found in vinegar is the most harmful element to plants. Vinegar can affect the growth of a plant because it hinders the plant's ability to absorb water and nutrients. Without sufficient water and nutrients, a plant cannot grow or live.
o Vinegar can lower the pH of soil and prevent plants from growing. The low pH levels are not suitable for many plants to grow. However, household vinegar is not a strong enough acid to cause lasting damage to the soil, and the soil should return to normal pH levels after a few days.
Natural Weed Killer
o A simple mixture of vinegar, salt, and liquid soap is a commonly used weed killer. This solution destroys the weeds and can also harm surrounding plants. According to the University of Illinois, vinegar is nonselective and can be damaging to surrounding plants.
Read more: What Is the Effect of Acidic Vinegar Water on the Growth Rate of Plants? | eHow.com http://www.ehow.com/facts_7386680_effect-water-growth-rate-plants_.html#ixzz1kD8KGGvoVinegar has a high acid content, which means that adding it to soil will lower the pH of the soil. Adding a vinegar to petunias, spider plants or coleus plants can cause the plant to suffer, wilt or die. Therefore, plants grow better with water.
• Vinegar Acid
• Plant Grow Light
o Soils that have a lot of limestone in it will benefit from adding one part vinegar mixed with eight parts water to the soil. This is only if the plant that is planted in the soil has a low pH needed. Some plants will grow better when water and vinegar is used.
o Blueberry plants need a low pH level in the soil of about 7.0 parts per million. If the soil has a high pH, vinegar will benefit the blueberry plants by lowering the pH. Other plants that need low soil pH include azaleas, rhododendrons and grape plants.
o Before adding vinegar to soil, the soil must be tested for pH levels. Soil testing is done at your county agricultural extension office.
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solution of water and distilled white vinegar combined with sugar is appropriate to feed plants and replace valuable nutrients. It's safe to use vinegar and water on your plants, provided that you use the right ratio of ingredients.