When to Plant in New Jersey

New Jersey may be small, but its growing conditions vary from the mild coastal shore to the colder northwestern highlands. The Garden State lives up to its nickname — the soil and climate are excellent for home vegetable gardening.

Most New Jersey gardeners have a solid growing season from late April through October. The state's proximity to the ocean moderates temperatures along the coast, while inland areas experience more temperature extremes.

Common Mistakes

Planting too early in northern NJ — the highlands can get frost well into May.
Ignoring deer pressure — New Jersey has one of the highest deer densities in the country, so plan fencing early.
Not taking advantage of the long fall season — the coast stays warm enough for greens into November.
Overcrowding raised beds — proper spacing is essential for airflow in NJ's humid summers.

FAQ

What is the last frost date?

The last frost date is the typical date in spring when your area has its final frost. After this date, it's generally safe to plant warm-season crops outdoors.

When should I start tomatoes indoors in New Jersey?

Start tomato seeds indoors about 6–8 weeks before your last frost date. For most of NJ, that means starting seeds in mid-March.

Can I plant before the last frost?

Yes — cool-season crops like lettuce, peas, spinach, and broccoli can handle light frost and should be planted 4–6 weeks before your last frost date.

Why does timing vary so much within New Jersey?

The northwestern highlands are significantly colder and higher than the coastal plain. Frost dates can differ by 2-3 weeks between Cape May and Sussex County.

What if I live in a frost-free area?

New Jersey doesn't have frost-free areas, but the southern shore has a notably longer season. Enter your zip code in the app for your personalized schedule.

How does Plan My Garden create my schedule?

You enter your zip code, and we look up your local frost dates. Then based on the crops you pick, we calculate when to start seeds, transplant, and harvest — personalized to your location.