Impatiens are a hearty bed flower that grow and thrive in most climates. When properly cared for, they bloom from spring through early fall with exceptionally colorful blossoms. Impatiens are a frost-tender plant, so proper winterizing and care is essential to ensure a hearty return in spring.
Test the soil with a soil test kit to verify the pH. Impatiens grow best in a pH between 6 and 7.5. If the soil's pH is too far off from that amount, consult a local nursery expert on regional soil additives to alter the pH.
Transplant the young plants from their nursery containers into any area of partial to complete shade. Impatiens are a delicate type of flower that blooms best in conditions that shield it from sunburn. Dig a hole large enough to adequately cover the root system, but not bury the stems.
Water the impatiens regularly, but do not over-water. The soil should be permitted to completely dry between waterings to prevent disease. If the flowers begin to have spots on the leaves or mold on the petals, then they are receiving too much water and showing signs of root rot. Allow more time to pass between waterings to ensure the bed dries completely.
Fertilize the plants at the start of spring and the end of autumn with a liquid fertilizer. If desiring to utilize organic fertilizer instead, add the initial application prior to transplanting, and re-fertilize semiannually to ensure a constant supply of nutrients.
Spray the impatiens monthly during their blooming season with a mixture of one-part borax and seven-parts water to prevent insect infestations.