I am a research scientist. Plants do well with humans that have a peaceful frequency vibrations. They respond to our energy admittance which is around a 6 foot circumference. They also respond to speech from humans and birds etc. If you play music they prefer music at 430 hertz and not the modern 440 hertz. Older classical music uses 430 hertz. Do not use local city water for plants, use distilled or filtered water at room temperature . Hope this helps. You will notice that if you have interior plants you will sleep better and have better health. These are things we have witnessed in our research.