This article will shock many of us who swear their red-ripe tomatoes and victory gardens. But Miracle-Gro is not a good fertilizer for potted plants. The salts that they use as a carrier is harmful, does not leach properly and leave many harmful toxic minerals behind. You can observe plants that have gone downhill by Miracle-Gro's use by the pots, and sometimes even plants of affected material. A yellowish-brown residue sticks to pot sides, foliage and sometimes on benches and floors near plants overdosed on Miracle-Gro. This residue is a harmful toxic salt, when scrapped off and added to soils of neighboring plants could instantly kill them.
These salts are also observed when making a solution of Miracle-Gro. When dissolving a small amount of powdered Miracle-Gro in a bucket of tap water, one sees the many undissolved salts present at the bottom. These salts are just the start of what to expect when watering your plants with Miracle-Gro. The overall effect is a plant that will eventually die and be blamed for death by some disease or insect, when the culprit is Miracle-Gro!
Since this portion of the page has been written, I get about a dozen e-mails a week saying that so many of their plant problems have disappeared and that not using Miracle Grow has solved a lot of other problems they assumed were bugs, diseases or watering disorders. Set a few plants aside and test it for yourself. Maybe you should try these plants again without the use of Miracle Grow.