When to Plant Impatiens in Utah

Growing Impatiens in Utah: Complete Guide

Impatiens (Impatiens walleriana) is a warm-season crop that needs a head start indoors before Utah's last frost. Most Utah gardeners begin seeds indoors around Saturday, February 14, 2026 and move transplants outside around Saturday, May 9, 2026, after the risk of frost has passed.

Because Utah stretches across 9 USDA hardiness zones (4a, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b), planting windows can shift by as much as six to eight weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.

With 60 days to maturity, Impatiens needs the indoor head start that Utah's growing season requires. Starting indoors ensures you have strong transplants ready the moment outdoor conditions are right.

Impatiens requires partial to full shade (2-4 hours) and regular (1-2 inches/week) moisture. Most of Utah receives adequate sunlight during the growing season, though gardeners in humid eastern regions should watch for fungal issues and ensure good air circulation.

For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Utah.