partridge pea (Chamaecrista fasciculata), photographi

Can I Grow Partridge Pea in New Jersey?

USDA Zones 6a-8a · Plant zone range 3-9

Yes — Strong Match

partridge pea (zones 3-9) covers every zone New Jersey contains (6a-8a), so hardiness is not what limits it anywhere in the state.

Partridge Pea in New Jersey — the short answer

Partridge Pea in New Jersey: hardy in zones 3–9, full sun, against a state median of ~222 frost-free days.

Plant zones
3-9
Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
New Jersey zones
6a-8a
USDA PHZM 2023
Frost window
Mar 26 - Apr 4 – Nov 5 - Nov 17
NOAA RCC ACIS 1991-2020, 28°F
Shortest county season
196 days
NOAA Regional Climate Centers ACIS, 1991-2020, county 28°F killing freeze
Days to maturity
90 days
Growable Ground Plant Database

Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — per-field provenance varies and is published with the dataset.

Score your parcel · free

Your yard isn't the whole zone.

Partridge Pea is grown as an annual, so your winter zone isn't the deciding factor — your frost-free window is. A typical New Jersey site runs ~222 frost-free days, but that is a state median, not your yard: slope, trees, and low spots move the last-frost date across a single parcel. Enter your address and we'll score partridge pea against your land's actual frost dates, sun, and soil.

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New Jersey is not one climate

A single New Jersey answer averages 21 counties whose growing seasons are 58 days apart — from 196 frost-free days in Sussex County to 254 in Hudson County. Which end of that your land sits nearer changes what partridge pea can finish before the first hard freeze.

196 daysSussex County254 daysHudson County

The middle half of 21 counties runs 215236 days, with a median of 222 days — a 58-day span end to end.

Measured across 21 New Jersey counties. NOAA Regional Climate Centers ACIS, 1991-2020, county 28°F killing freeze. Quartiles are order statistics — every figure shown is a value a real county recorded, not an interpolation. Your own site sits somewhere inside this range; a parcel report resolves where.

Where in New Jersey Fits Best

Even within New Jersey's zones 6a-8a, county microclimates differ enough to change what thrives. These counties carry the closest zone match for partridge pea (USDA PHZM 2023):

Zone Comparison

Partridge Pea Needs

  • USDA Zones: 3-9
  • Frost-Free Days: 180+
  • Sun: Full Sun
  • Mature size: 2 ft tall
  • Picking window: ~60 days of harvest
  • Drought tolerance: Medium

New Jersey Has

  • USDA Zones: 6a-8a
  • Last Hard Freeze (28°F): Mar 26 - Apr 4
  • First Hard Freeze (28°F): Nov 5 - Nov 17
  • Annual Rainfall: 40-50 inches
  • Common Soils: Sandy loam (Pine Barrens), Silt loam, Clay

Plant Zone Range (zones 3-9)

3a
9b
3a (Cold)13b (Hot)

Preferred Soil pH

3.5 (Acidic)7.0 (Neutral)9.0 (Alkaline)
Highlighted range: pH 4.57.0

Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS, and university Extension sources — per-field provenance varies and is published with the dataset. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.

When to Plant Partridge Pea in New Jersey

The frost window

Across New Jersey, the last spring hard freeze (28°F) clears between Mar 26 and Apr 4, and the first fall hard freeze lands between Nov 5 and Nov 17 (NOAA Regional Climate Centers ACIS, 1991-2020). Counting from the latest last freeze to the earliest first freeze, that's a 215-day window you can count on — up to 236 days on a mild site in a kind year. That marks the hard freeze, not the last light frost, so tender transplants usually wait another 2-3 weeks.

When to start the seed

Those dates are when partridge pea goes out, not when it starts. It is sown under cover about 4 weeks ahead, so counting back from New Jersey's late-side last freeze of Apr 4 is what fixes your sowing date — and a yard that clears frost earlier than the state's late date starts earlier still.

Days to maturity vs. the window

At 90 days to maturity (Growable Ground Plant Database), counting from the last hard freeze it ripens with 125 days to spare even in New Jersey's tightest freeze scenario — room for a later start or a second sowing.

Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: Growable Ground Plant Database — frost-free days from FAO ECOCROP, days to harvest from university Extension production guides, and growing-degree-day and chill-hour minimums that are compilation estimates rather than published figures. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.

Growing Season Fit

The zone check says partridge pea survives winter here. Whether the season is long enough — and warm enough — is a different question.

Frost-free days

Partridge Pea wants 180+ frost-free days; a typical New Jersey site sees ~222 (NOAA Regional Climate Centers ACIS, 1991-2020). That leaves a workable window — start indoors to bank time.

GDD and chill-hour figures are computed from PRISM 1991-2020 monthly climate normals; frost-free days from NOAA Regional Climate Centers ACIS, 1991-2020. Each is the state median across its counties (P25/P75 span the within-state spread). Hardiness-zone range is USDA PHZM 2023.

Soil + Drainage Fit

Partridge Pea likes near-neutral soil (pH 4.5-7). That's the common-ground band across New Jersey's sandy loam (pine barrens) and silt loam — a soil test confirms it for your site. It will grow across that whole span, but it does best between pH 5 and 6.5 — worth knowing before you decide whether a New Jersey soil test result is a problem or just a number. Drainage matters: this plant wants well (dry spells). If your New Jersey site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.

Plant pH requirements: FAO ECOCROP and USDA PLANTS, with the remaining rows from other published sources or Growable Ground compilation. Drainage: FAO ECOCROP, with the remaining rows from other published sources or Growable Ground compilation. New Jersey soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.

What Else to Consider for Partridge Pea in New Jersey

Zone compatibility tells you about winter cold survival — but New Jersey growers also need to think about:

Sandy Pine Barrens soils are nutrient-poor

Urban heat island effects in northern NJ

Deer browse is extreme in suburban areas

What to actually do about these — and the constraints that apply to every New Jersey grower, not just partridge pea — is covered on the New Jersey growing guide.

Timing shifts within New Jersey

Partridge Pea needs about 180 days of frost-free season to complete its cycle. Even Sussex County — New Jersey’s shortest season at 196 frost-free days — clears that by 16 days, so season length isn’t the constraint anywhere in New Jersey. What varies is your own parcel.

County last-freeze dates and frost-free day counts: NOAA Regional Climate Centers ACIS (1991-2020), county 28°F freeze (earlier than the folk 32°F "last frost"). Partridge Pea's 180-day requirement: USDA PLANTS / Growable Ground plant database (minimum frost-free days). A parcel report resolves your address's own frost dates.

Pollinator + Wildlife Value

Partridge Pea draws native bees and butterflies (high value, Growable Ground Plant Database). Planting it near vegetable beds can lift fruit set on neighboring crops. Outdoors, partridge pea can only work that bloom inside New Jersey's frost window — roughly 222 days, opening after the last 28°F freeze (Mar 26 - Apr 4) and closing at the first (Nov 5 - Nov 17), per NOAA Regional Climate Centers ACIS, 1991-2020.

New Jersey Cooperative Extension

For New Jersey-specific cultivar recommendations, planting calendars, and pest pressure for partridge pea, the canonical source is Rutgers Cooperative Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.

Is Partridge Pea native to New Jersey?

Yes — the USDA PLANTS Database (accessed 2026-07-01) documents Partridge Pea as native to New Jersey. Planting it supports the pollinators and wildlife that evolved alongside it.

Native-range data: USDA PLANTS Database state-distribution records, accessed 2026-07-01.

Common Questions About Growing Partridge Pea in New Jersey

When can I plant Partridge Pea in New Jersey?

New Jersey's last spring hard freeze (28°F) clears between Mar 26 and Apr 4, and the first fall hard freeze lands between Nov 5 and Nov 17 (NOAA Regional Climate Centers ACIS, 1991-2020). Time outdoor planting to after the last hard freeze for your specific site — a further two to three weeks for anything tender — and count back from those dates for transplant scheduling.

Can Partridge Pea mature before first frost in New Jersey?

Yes — Partridge Pea matures in 90 days (Growable Ground Plant Database), and New Jersey's dependable hard-freeze-free window runs 215 days (NOAA Regional Climate Centers ACIS, 1991-2020), leaving 125 days of margin. Plant once the last hard freeze has passed — two to three weeks later for anything tender — and it ripens ahead of the first fall freeze.

What hardiness zone is Partridge Pea grown in across New Jersey?

New Jersey spans USDA hardiness zones 6a-8a (USDA ARS PHZM 2023). Partridge Pea carries a range of zones 3-9, so the overlap zones are where outdoor growing is most reliable.

How many frost-free days does a typical New Jersey site have?

A typical New Jersey site sees ~222 frost-free days per year (derived from NOAA Regional Climate Centers ACIS, 1991-2020). Partridge Pea needs 180+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date.

Is Partridge Pea native to New Jersey?

Yes — the USDA PLANTS Database (accessed 2026-07-01) documents Partridge Pea as native to New Jersey. Planting it supports the pollinators and wildlife that evolved alongside it.

How should I amend the soil for Partridge Pea in New Jersey?

Partridge Pea prefers pH 4.5-7 and well (dry spells) drainage (FAO ECOCROP). That sits in the common-ground band across New Jersey soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.

Will Partridge Pea actually grow on my specific land in New Jersey?

State-level zone + climate data is a sketch. A Growable Ground parcel report scores partridge pea against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.

Free Report

Check your specific parcel in New Jersey

State-level data is a sketch. Your Growable Ground report scores partridge pea against your parcel's exact soil, sun, drainage, and frost data — not zone averages.

Three things about your lot that New Jersey partridge pea averages can't show:

Your soil pHYour frost-free days — New Jersey averages 222Your sun & shade

We read public map data around New Jersey — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources read at your address, not the New Jersey partridge pea average

Explore More

Explore New Jersey county by county

New Jersey carries 21 counties with their own USDA zone — a sample of the growing pages for partridge pea there:

Where else partridge pea grows

Partridge Pea's zone band crosses state lines — these are the states closest to New Jersey in winter climate where it also has a page, plus the far ends of its range. Each one re-answers the question with that state's own record.

More to grow in New Jersey

New Jersey has a growing page for 1,020 plants — a rotating sample of the rest of the shelf.

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