When to Plant Daylily in South Dakota

Growing Daylily in South Dakota: Complete Guide

Daylily (Hemerocallis spp.) is planted as nursery stock — a container-grown or bare-root plant from a garden center, not seed. Depending on your zone, the ideal spring window in South Dakota falls between April 25, 2027 (Zone 5b) and May 15, 2027 (Zone 4a); early fall works too, once summer heat breaks.

Because South Dakota stretches across 4 USDA hardiness zones (4a, 4b, 5a, 5b), planting windows can shift by as much as two to four 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 90 days to maturity, Daylily fits comfortably within South Dakota's growing season in most zones. In the warmest parts of the state, a second planting later in the season may be possible.

Daylily requires full sun to part shade and low to moderate moisture. Great Plains gardens face strong winds and variable moisture — windbreaks and drip irrigation help significantly.

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 South Dakota.