2026 Planting Guide

Spring crop

When to Plant Tomatoes in Pennsylvania

Plant May 10June 1Harvest July 20October 170-90 days growing period

Complete guide to growing tomatoes in Pennsylvania with optimal planting dates, recommended varieties, soil requirements, pest management, and harvest timing. Data sourced from USDA and state extension services.

Monthly Planting Calendar

Visual overview of the tomatoes growing season in Pennsylvania. Red diamond markers indicate frost date boundaries.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Plant
Plant
Harvest
Harvest
Harvest
Harvest
Plant: May 10 - June 1GrowHarvest: July 20 - October 1Frost dates

Quick Facts

Min. Soil Temp

60°F (16°C) minimum

32F50F65F80F

Growing Period

70-90 days

From planting to harvest

Last Spring Frost

April 28

Wait until after this date

First Fall Frost

October 8

Harvest before this date

Monthly Task Timeline

Month-by-month guide for managing tomatoes in Pennsylvania.

January - April

Off-season

Cover crop planting, soil testing, equipment maintenance, and planning for next season.

May - June

Plant

Prepare soil, apply starter fertilizer, and sow seeds at recommended depth and spacing.

July - October

Harvest

Check maturity indicators, schedule equipment, harvest at optimal moisture content.

November - December

Off-season

Cover crop planting, soil testing, equipment maintenance, and planning for next season.

Best Tomatoes Varieties for Pennsylvania

These varieties have proven performance in Pennsylvania's climate and soil conditions. Always source certified seed from reputable dealers.

#VarietyBest For
1CelebrityPennsylvania climate
2Better BoyPennsylvania climate
3Mountain Fresh PlusPennsylvania climate
4RutgersPennsylvania climate

Growing Tips for Pennsylvania

Region-specific advice from agricultural extension services and experienced Pennsylvania farmers.

1

Lancaster County is major fresh market area

2

Organic production significant

3

Stake, cage, or Florida weave — prune suckers for indeterminate types

Pest & Disease Watch

Monitor for these threats throughout the growing season. Integrated Pest Management (IPM) is recommended.

Tomato hornworm

Scout regularly and use integrated pest management

Whiteflies

Scout regularly and use integrated pest management

Aphids

Scout regularly and use integrated pest management

Late blight

Scout regularly and use integrated pest management

Fusarium wilt

Scout regularly and use integrated pest management

Companion Planting

These plants grow well alongside tomatoes, improving pest control, pollination, and nutrient availability.

Basil
Carrots
Marigolds
Parsley
Peppers

Frost Dates

Last Spring Frost

April 28

Wait until after this date before planting frost-sensitive crops outdoors.

First Fall Frost

October 8

Plan to complete harvest of warm-season crops before this date arrives.

Frequently Asked Questions

When is the best time to plant tomatoes in Pennsylvania?

The optimal planting window for tomatoes in Pennsylvania is May 10 to June 1. Soil temperature should reach at least 60°F (16°C) minimum before planting. The total growing period is 70-90 days.

What varieties of tomatoes grow best in Pennsylvania?

The best varieties for Pennsylvania include Celebrity, Better Boy, Mountain Fresh Plus, Rutgers. These varieties are adapted to local climate and soil conditions and have proven performance records.

When can I harvest tomatoes in Pennsylvania?

The harvest window for tomatoes in Pennsylvania is typically July 20 to October 1. The crop takes 70-90 days from planting to reach maturity.

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Data Sources

Data sourced from USDA NASS Crop Planting Dates, Pennsylvania Cooperative Extension Service, and NOAA frost date records. Last updated: March 2026.

Planting dates are averages and may vary by county, elevation, and local microclimate. Always consult your local extension office for the most precise recommendations.