Impatiens
Publications
Impatiens Downy Mildew
PP309/PP309 by N. A. Peres and L. A. WarnerNovember 9, 2020Downy mildew on impatiens is of great concern throughout Florida. Winters in south Florida provide high humidity paired with cool nights, creating ideal conditions for disease development. Downy mildews are caused by several different species of pathogens that tend to be plant-host specific. Plasmopara obducens is the pathogen that affects impatiens. Some literature indicates that nighttime temperatures of about 50°F to 72°F favor downy mildew, but the disease has been reported on impatiens year-round in south Florida.
Impatiens x New Guinea Hybrids New Guinea Impatiens
FP281/FPS-281 by Edward F. Gilman, Teresa Howe, Ryan W. Klein, and Gail HansenNovember 6, 2023This document provides an overview of the New Guinea impatiens, a versatile and colorful annual plant. It highlights the plant’s distinguishing features, including its brilliantly marked foliage, large single flowers in various colors, and its ability to tolerate greater amounts of sun once established. The document details the plant’s growth habits, ideal planting conditions, and maintenance requirements, emphasizing its suitability for edging, mass planting, and container gardening. Additionally, it mentions the plant’s pest resistance and recent developments in seed propagation, making it a popular choice for gardeners. Original publication date October 1999.
Related IFAS Blog Posts
Enjoy the new and improved touch-me-not
Ralph MitchellMarch 20th, 2024Impatiens are known by many names including “touch-me-not” and “busy lizzie”. However, almost everyone knows that impatiens are common bedding annuals that bring seasonal color and easy care. While once known to be used exclusively in partly shaded/shaded areas, newer types of impatiens tolerate more sun – some types even grow in Florida year-round taking […]
Questions From The Plant Clinic: The Return of Impatiens
Kaydie McCormickApril 10th, 2020The Return of Impatiens Have you been wondering why you’re starting to see impatiens at the store again? Master Gardener Volunteer Carol was too, and did some research to find out why! Read more articles from our Master Gardener Volunteers [here]. Beautiful traditional impatiens (Impatiens walleriana) used to be a mainstay in Central Florida gardens. […]