Perennial Flower

When to Plant Daylilies in Maryland

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

The Short Answer

In Maryland, plant daylilies based on your regional frost dates. Western Maryland has a last frost around May 1 - May 15, while Eastern Shore sees frost end around Apr 1 - Apr 15. Moderate climate with four seasons. Hot, humid summers. Good growing season. Diverse growing conditions across the...

Maryland Frost Dates

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

Region Zones Last Frost (Spring) First Frost (Fall)
Western Maryland 5b, 6a May 1 - May 15 Sep 25 - Oct 10
Central Maryland 6b, 7a Apr 10 - Apr 25 Oct 10 - Oct 25
Eastern Shore 7a, 7b, 8a Apr 1 - Apr 15 Oct 20 - Nov 5

Daylilies Planting Schedule for Maryland

Western Maryland (Zones 5b, 6a)

Average last frost: May 1 - May 15 · Average first frost: Sep 25 - Oct 10

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0 wks after frost

Central Maryland (Zones 6b, 7a)

Average last frost: Apr 10 - Apr 25 · Average first frost: Oct 10 - Oct 25

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0 wks after frost

Eastern Shore (Zones 7a, 7b, 8a)

Average last frost: Apr 1 - Apr 15 · Average first frost: Oct 20 - Nov 5

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0 wks after frost

Growing Daylilies in Maryland

Daylilies in Maryland's Climate

Daylilies thrive in your four-season climate. Plant from spring through early fall. The full range of varieties works — dormant, semi-evergreen, and evergreen. Minimal maintenance required. Divide every 3-4 years to maintain vigor.

Soil Considerations for Maryland

Clay soils in Piedmont. Sandy loam on Eastern Shore. Acidic in most areas. Rich alluvial soils along river valleys.

Maryland Climate & Growing Season

Moderate climate with four seasons. Hot, humid summers. Good growing season. Diverse growing conditions across the state. Daylilies can handle frost well, which is an advantage in Maryland's climate. You can push planting dates earlier in spring and extend into fall.

Growing season length varies across Maryland: Western Maryland (5b, 6a) has a last frost around May 1 - May 15, while Eastern Shore (7a, 7b, 8a) sees frost end around Apr 1 - Apr 15. This difference matters for daylilies — adjust your planting dates to match your specific region.

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 across Maryland, but your exact planting dates depend on which region you're in. Western Maryland gardeners should plan around a May 1 - May 15 last frost, while those in Eastern Shore can typically plant earlier. 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 Maryland Planting Calendar All plants for Maryland 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

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