Perennial Flower

When to Plant Daylilies in Ohio

Nearly indestructible perennials with stunning trumpet-shaped blooms. Each flower lasts just one day, but the show goes on for weeks.

The Short Answer

Daylilies are Ohio's most indestructible perennial — they thrive in full sun to partial shade, tolerate clay soil, handle drought, and multiply to fill garden borders with trumpet-shaped blooms in every color imaginable.

Ohio Frost Dates

Your planting dates depend on which part of Ohio you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Northern Ohio 5b, 6a May 1 - May 15 Oct 1 - Oct 15
Central Ohio 6a, 6b Apr 20 - May 5 Oct 10 - Oct 25
Southern Ohio 6b Apr 15 - Apr 30 Oct 15 - Oct 30

Daylilies Planting Schedule for Ohio

Northern Ohio (Zones 5b, 6a)

Average last frost: May 1 - May 15 · Average first frost: Oct 1 - Oct 15

Transplant Outside
0 wks after frost

Central Ohio (Zones 6a, 6b)

Average last frost: Apr 20 - May 5 · Average first frost: Oct 10 - Oct 25

Transplant Outside
0 wks after frost

Southern Ohio (Zones 6b)

Average last frost: Apr 15 - Apr 30 · Average first frost: Oct 15 - Oct 30

Transplant Outside
0 wks after frost

Growing Daylilies in Ohio

State-Specific Growing Tips

Plant divisions or bare-root plants in spring (after frost) or early fall. Full sun produces the most blooms. Daylilies tolerate Ohio's clay soil better than almost any other perennial. Divide every 3-4 years to maintain vigor. Deadhead for tidiness but not necessary for continued bloom. Each flower lasts only one day, but each scape produces dozens of buds.

Recommended Varieties for Ohio

Stella de Oro (reblooming gold — the world's most popular daylily). Happy Returns (reblooming lemon). Purple d'Oro. Chicago Apache (red). Thousands of registered varieties exist.

Common Challenges in Ohio

Daylily rust (a fungal disease) can appear in humid conditions — destroy infected foliage. Deer eat flowers and buds. Aphids on flower scapes. Otherwise nearly indestructible.

Growing Tips

Plant bare-root or divisions in spring or fall. Divide clumps every 3-4 years to maintain vigor. Deadhead to keep gardens tidy.

Companion Planting

Plant daylilies alongside these companions for better growth:

Coneflowers Black Eyed Susans

The Bottom Line

Daylilies can be grown successfully in Ohio with proper attention to regional frost dates and local growing conditions. Timing varies across the state — Northern Ohio gardeners work with a last frost around May 1 - May 15, while Southern Ohio sees frost end around Apr 15 - Apr 30. Choose varieties suited to your region, amend your soil based on its specific needs, and monitor for the pests and diseases most common in your area. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Daylilies Growing Guide National planting guide with all states Ohio Planting Calendar All plants for Ohio Daylilies in Alabama Alabama planting dates Daylilies in Alaska Alaska planting dates Daylilies in Arizona Arizona planting dates Daylilies in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

Ready to Start Planting?

Enter your zip code and pick your plant. We'll tell you exactly when to plant, start seeds, and harvest — based on where you live.

Find Your Planting Dates