Plant Profile: Impatiens walleriana

These vibrant perennial herbs can reach heights of 6 inches to 2 feet, forming a mound with their lower leaves resting on the ground. Impatiens walleriana is a highly favored annual bedding plant, known for its diverse color palette, thriving best in partial to full shade. While it can endure full sun, it requires ample water and may appear wilted during periods of high heat and limited moisture. However, excessive watering can lead to root rot. The flowers can be either bicolored or double. This plant has low drought resistance and is suitable for growing in hardiness zones 10-11. For optimal growth, it prefers moist, well-drained soil enriched with organic matter. Commonly, it is used in planters, hanging baskets, containers, and around trees in shaded locations, as well as in bedding arrangements. Seeds should be sown in March under glass, germinating at temperatures between 70-75 degrees, with planting occurring in May. The cultivar 'Patient Lucy' is particularly popular but is often susceptible to deer damage.

**Insects, Diseases, and Other Issues:** One notable concern is Downy Mildew, caused by the fungus-like organism Plasmopara obducens. Traditional fungicides for fungal diseases are ineffective against Downy Mildew. For further details, refer to the Pest Alert.

**Alternative Plants:** Impatiens hawkeri serves as a viable alternative, offering resistance to Downy Mildew.

**Quick Identification Tips:**