Although it is a pricier option than tap water, watering plants with sparkling water may be one of the best-kept secrets to boosting plant growth. According to a study conducted at Colorado University Boulder, carbonated water makes plants grow faster and makes green plants grow greener. Sparkling water contains dissolved nutrients that are easily absorbed by the plants’ root system. Nutrients in sparkling water may include magnesium, calcium, carbon, hydrogen, oxygen, sodium, sulfur, phosphorus and potassium.
Check the soil before watering your plants to avoid overwatering. Soggy roots and wet conditions leave plants vulnerable to disease. Additionally, too much water may deplete the soil’s oxygen, causing the roots to die.
Place the sparkling water on the counter, allowing it to warm up to room temperature. According to horticulturist Carl Hoffman, ice-cold water may shock the plant’s roots and delay the plant’s growth or cause leaf drop. Room-temperature sparkling water is closer to the natural temperature of rainwater during the growing season.
Pour the sparkling water into a watering can. Watering cans offer more control over the flow than watering plants right from the bottle, minimizing any waste and offering precise placement.
Water plants weekly, preferably in the morning. According to the University of California’s Statewide Integrated Pest Management Program, watering in the morning promotes plant health by minimizing evaporation and giving plants plenty of hydration to withstand the afternoon heat. If you cannot water them in the morning, late afternoon or early evening is suitable, particularly if you are using a watering can and can avoid wetting the plant’s leaves.
Soak the soil around the plant. Add 1 inch of sparkling water to the entire root zone around the plant, avoiding getting the foliage wet. Similar to soggy roots, wet foliage is more susceptible to disease.
Replace at least one watering per week with sparkling water or club soda. The minerals and extra carbon dioxide give plants a boost during the growing season. According to Reader’s Digest, weekly treatments with carbonated water offer maximum yealds.