The Right Place
Light - Impatiens does best in light shade or filtered, indirect light, but it can handle some direct sun if it is limited to about 2 hours a day, preferably in the morning. New Guinea types are even more tolerant of bright sun. Certainly impatiens’ brilliant colors show to best advantage in locations with some shade. Sunshine tends to bleach out paler impatiens flowers.
Soil - Like most flowers, impatiens prefer moderately fertile, well-drained soil, but they will accept poor soil too, which is another reason they are so popular. They are also tolerant when it comes to soil acidity, accepting a fairly broad pH range of 6.0 to 7.5.