All About Impatiens: The Shade-Loving Annual for Continuous Color

Overview

Impatiens (Impatiens walleriana), also called busy lizzy or touch-me-not, are the go-to annual for shade gardens. Blooming from early summer until frost in a rainbow of colors (red, pink, white, rose, mauve, bicolors) and forms (single, semi-double, double), they form bushy mounds 6-24 inches tall with dark green foliage.

Growing Requirements

Environment

Impatiens need moist, well-drained soil and thrive in partial to full shade. They tolerate sun only with constant moisture. New Guinea hybrids (I. hawkeri) handle more sun but produce smaller leaves and fewer flowers in intense light.

Planting

Start seeds indoors 8-10 weeks before last frost, or buy transplants. Space 12 inches apart for spreading habit; 6 inches for taller, denser growth. Amend soil with compost or slow-release fertilizer at planting.

Ongoing Care

Watering and Feeding

Water deeply once weekly—never let soil dry completely. Fertilize monthly with all-purpose fertilizer; container plants need liquid feed every 3-4 weeks.

Special Situations

Under trees, increase water and fertilize every 3 weeks due to root competition. Impatiens excel in containers, window boxes, and as indoor plants.

Common Problems

Watch for root-knot nematodes (yellowing, stunting), tarnished plant bug (deformed flowers), bacterial wilt (stem rot at soil line), and fungal issues (spotted leaves, stunting). Good sanitation and airflow prevent most issues.