Perennial Flower

When to Plant Daylilies in New Jersey

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 New Jersey, plant daylilies based on your regional frost dates. Northern New Jersey has a last frost around Apr 20 - May 5, while Southern New Jersey sees frost end around Apr 1 - Apr 15. Moderate climate with maritime influence. Good growing season. Four seasons. Excellent for a wide range of crops.

New Jersey Frost Dates

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

Region Zones Last Frost (Spring) First Frost (Fall)
Northern New Jersey 6a, 6b Apr 20 - May 5 Oct 5 - Oct 20
Central New Jersey 6b, 7a Apr 10 - Apr 25 Oct 15 - Nov 1
Southern New Jersey 7a, 7b Apr 1 - Apr 15 Oct 20 - Nov 5

Daylilies Planting Schedule for New Jersey

Northern New Jersey (Zones 6a, 6b)

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

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0 wks after frost

Central New Jersey (Zones 6b, 7a)

Average last frost: Apr 10 - Apr 25 · Average first frost: Oct 15 - Nov 1

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0 wks after frost

Southern New Jersey (Zones 7a, 7b)

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 New Jersey

Daylilies in New Jersey'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 New Jersey

Sandy soils in Pine Barrens. Clay in north. Acidic in south. Rich loam in central agricultural areas. The Garden State for good reason.

New Jersey Climate & Growing Season

Moderate climate with maritime influence. Good growing season. Four seasons. Excellent for a wide range of crops. Daylilies can handle frost well, which is an advantage in New Jersey's climate. You can push planting dates earlier in spring and extend into fall.

Growing season length varies across New Jersey: Northern New Jersey (6a, 6b) has a last frost around Apr 20 - May 5, while Southern New Jersey (7a, 7b) 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 New Jersey, but your exact planting dates depend on which region you're in. Northern New Jersey gardeners should plan around a Apr 20 - May 5 last frost, while those in Southern New Jersey 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 New Jersey Planting Calendar All plants for New Jersey 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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