Root Vegetable

When to Plant Potatoes in New Jersey

Incredibly satisfying to grow. There's nothing quite like digging up your own potatoes — it's like buried treasure.

The Short Answer

In New Jersey, soil conditions are an important factor for potatoes. Sandy soils in Pine Barrens. Clay in north. Acidic in south. Rich loam in central agricultural areas. The Garden State for good reason. Direct sow 2 weeks before your last frost date.

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

Potatoes 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

Direct Sow
2 wks before frost

Central New Jersey (Zones 6b, 7a)

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

Direct Sow
2 wks before frost

Southern New Jersey (Zones 7a, 7b)

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

Direct Sow
2 wks before frost

Growing Potatoes in New Jersey

Potatoes in New Jersey's Climate

Plant seed potatoes 2-3 weeks before your last frost when soil reaches 45°F. Your varied soils all grow potatoes, though clay soils produce rougher-skinned tubers than sandy loams. Hill soil around stems as they grow. Watch for late blight during humid summers — Pennsylvania and the mid-Atlantic are historically late blight territory.

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. Loose, well-drained soil is especially important for potatoes since the edible portion grows underground. If your soil is heavy clay, consider raised beds.

New Jersey Climate & Growing Season

Moderate climate with maritime influence. Good growing season. Four seasons. Excellent for a wide range of crops.

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 potatoes — adjust your planting dates to match your specific region.

Growing Tips

Plant seed potatoes (not grocery store potatoes) 2-3 weeks before last frost. Hill soil around stems as they grow to increase yield.

Companion Planting

Plant potatoes alongside these companions for better growth:

Beans Corn Cabbage Marigolds

Keep potatoes away from:

Tomatoes Squash Sunflowers

The Bottom Line

Potatoes 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

Potatoes Growing Guide National planting guide with all states New Jersey Planting Calendar All plants for New Jersey Potatoes in Alabama Alabama planting dates Potatoes in Alaska Alaska planting dates Potatoes in Arizona Arizona planting dates Potatoes 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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