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You may have heard the tip to extend the freshness of cut flowers by adding aspirin to their water. But did you know that aspirin, or acetylsalicylic acid, isn’t just good for cut flowers? Research from the University of Rhode Island (USA) found that it can also boost the immune system of plants, helping them to grow stronger and bloom more vigorously.
Researchers conducted a study where they sprayed a set of plants with a solution made by dissolving four aspirin pills in four liters of water every three weeks. The results were remarkable. The aspirin-treated plants grew larger and stronger by the end of the growing season because they were more resilient to fungi and microbes.
This treatment has proven to be particularly effective for nightshade plants like potatoes and tomatoes. Below, we’ll explore the most effective ways to use aspirin on plants, although there are various methods you can try.
Using Aspirin as a Rooting Agent
Boost Root Development: To promote root development and protect cuttings from mold, soak the clippings in distilled water with an aspirin for three to four hours. This serves as both a growth stimulant and a disinfectant, ensuring the cuttings remain healthy as they begin to root.
Stimulating Plant Growth
Foliar Spray: For ongoing plant growth stimulation, spray the plants every three weeks with a solution made by diluting one aspirin in one liter of water. Be cautious with the quantity used, as too much aspirin can harm the plant.
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