Fertilizer is over promoted and oversold thanks to the heavy advertising by Miracle Gro and other manufacturers. In fact,
plants do use nutrients, but in very minute quantities. Have you ever noticed how long cuttings, such as lucky bamboo, can live in plain water before they start to deteriorate? That demonstrates how little nutrients are needed by most
plants. In fact, good quality potting mixes have plenty of nutrients to last for several years or more. There is a far greater risk of damaging a
plant by over fertilizing than by not fertilizing at all.
Although
plants do remove certain air pollutants, none of these pollutants contain the nutrients that
plants use. The pollutants may not harm
plants that absorb them, but the pollutants are not a source of nutrition for
plants.