Perennial Flower

When to Plant Daylilies in Massachusetts

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 Massachusetts, plant daylilies based on your regional frost dates. Western Massachusetts has a last frost around May 1 - May 20, while Coastal/Cape sees frost end around Apr 15 - May 1. Four seasons. Maritime influence moderates coastal areas. Cold winters. Good growing season with adequate moisture.

Massachusetts Frost Dates

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

Region Zones Last Frost (Spring) First Frost (Fall)
Western Massachusetts 5b, 6a May 1 - May 20 Sep 20 - Oct 10
Central Massachusetts 5b, 6a May 1 - May 15 Sep 25 - Oct 10
Coastal/Cape 6b, 7a Apr 15 - May 1 Oct 15 - Nov 1

Daylilies Planting Schedule for Massachusetts

Western Massachusetts (Zones 5b, 6a)

Average last frost: May 1 - May 20 · Average first frost: Sep 20 - Oct 10

Transplant Outside
0 wks after frost

Central Massachusetts (Zones 5b, 6a)

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

Transplant Outside
0 wks after frost

Coastal/Cape (Zones 6b, 7a)

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

Transplant Outside
0 wks after frost

Growing Daylilies in Massachusetts

Daylilies in Massachusetts'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 Massachusetts

Rocky, acidic New England soils. Glacial deposits. Raised beds popular. Amend heavily with compost.

Massachusetts Climate & Growing Season

Four seasons. Maritime influence moderates coastal areas. Cold winters. Good growing season with adequate moisture. Daylilies can handle frost well, which is an advantage in Massachusetts's climate. You can push planting dates earlier in spring and extend into fall.

Growing season length varies across Massachusetts: Western Massachusetts (5b, 6a) has a last frost around May 1 - May 20, while Coastal/Cape (6b, 7a) sees frost end around Apr 15 - May 1. 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 Massachusetts, but your exact planting dates depend on which region you're in. Western Massachusetts gardeners should plan around a May 1 - May 20 last frost, while those in Coastal/Cape 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 Massachusetts Planting Calendar All plants for Massachusetts 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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