Pennsylvania planting calendar

When to put transplants or seed in the ground across Pennsylvania, worked out from the average last spring and first fall frost for each USDA zone in the state, and what to line up before you commit ground. Written for farms that sell what they grow.

Your zone in Pennsylvania: frost dates

Zones 5b–7b run through Pennsylvania. Frost dates are long-term averages for planning, not a forecast for your field.

  • Zone 5b
    Erie and the northern tier
    Last frost
    ~May 1
    First frost
    ~October 6
    Frost-free days
    158
    Winter low
    -15°F to -10°F
  • Zone 6a
    State College and the central ridges
    Last frost
    ~May 1
    First frost
    ~October 1
    Frost-free days
    153
    Winter low
    -10°F to -5°F
  • Zone 6b
    Lancaster County, Philadelphia and the southeast
    Last frost
    ~April 24
    First frost
    ~October 8
    Frost-free days
    167
    Winter low
    -5°F to 0°F
  • Zone 7b
    Center City Philadelphia
    Last frost
    ~April 8
    First frost
    ~October 22
    Frost-free days
    197
    Winter low
    5°F to 10°F

What it costs to grow an acre in Pennsylvania

No published Pennsylvania budget is transcribed here yet, so this page shows planting dates only — we do not publish cost figures we cannot source. Neighboring state budgets from NC State, UGA and UF/IFAS are on the crop profitability page.

Every figure is transcribed from a published land-grant enterprise budget for that state. These are planning budgets built from grower panels and dealer quotes, not surveys of what farms actually spent — your invoices override them everywhere they exist.

When to plant Pennsylvania's main crops

Calculated for Zone 6b (Lancaster County and the southeast). Pick your own zone on the crop page.

  • Tomatoes
    May 1 – May 22
    July 22 – August 19
  • Peppers
    May 8 – May 29
    July 24 – August 21
  • Sweet corn
    April 24 – May 15
    July 15 – August 12
  • Cucumbers
    May 1 – May 22
    July 2 – July 30
  • Summer squash
    May 1 – May 22
    June 27 – July 25
  • Green beans (bush)
    April 24 – May 15
    June 25 – July 23
  • Cabbage
    March 27 – April 17
    June 17 – July 15
  • Broccoli
    March 27 – April 17
    June 7 – July 5
  • Kale
    March 20 – April 10
    May 21 – June 18
  • Carrots
    March 27 – April 17
    June 12 – July 10
  • Lettuce
    March 20 – April 10
    May 11 – June 8
  • Strawberries
    October 2 – October 23
    April 7 – May 5

What zone is my farm?

  • ErieZone 5b
  • State CollegeZone 6a
  • LancasterZone 6b
  • PhiladelphiaZone 6b

If your farm sits in a zone that is not listed here, start from the calendar index and pick the closest match, then confirm with your county extension office.

Before you commit ground

A planting date tells you when a crop can grow — not whether it pays. Work out your breakeven price, then line up who is buying before you plant.

Pennsylvania planting and cost questions

What USDA planting zone is Erie, Pennsylvania?
The calendar carries Erie in Zone 5b. Average last spring frost is around May 1 and average first fall frost around October 6, which is about 158 frost-free days.
What USDA planting zone is State College, Pennsylvania?
The calendar carries State College in Zone 6a. Average last spring frost is around May 1 and average first fall frost around October 1, which is about 153 frost-free days.
When should I plant tomatoes in Pennsylvania?
In Zone 6b (Lancaster County and the southeast), May 1 – May 22 july 22 – august 19

Other state pages

Dates are calculated from average first and last frost dates for each zone. Your microclimate, elevation and soil temperature can shift any window by a week or more — treat these as starting points and keep your own records.