When to Plant in Lancaster, PA

In Lancaster, gardeners can expect their last spring frost on April 27 and the first fall frost on October 15, providing a total of 171 frost-free days. This climate allows for a diverse range of planting options throughout the growing season, helping gardeners maximize their yields and enjoy a bountiful harvest.

Lancaster's humid temperate microclimate, characterized by four distinct seasons, is conducive to growing a variety of crops. Warm-season crops like tomatoes, peppers, and cucumbers thrive here due to the ample summer heat and moisture. In contrast, crops like basil and squash can sometimes struggle, particularly if planted too late in the spring or if fall presents unexpected early frosts.

What to plant now in Lancaster

Spring: As the last frost is around April 27, early spring is the perfect time to start cool-season crops such as peas, spinach, and lettuce, with sowing recommended between April 27 and April 27 for optimal growth.
Summer: Following the frost-free date, plan to plant warm-season crops like tomatoes, peppers, and eggplants from April 27 to mid-June. This ensures a robust growing season with plenty of warmth for these sun-loving plants.
Fall: As autumn approaches, consider planting fall crops such as kale and radishes from early September up until approximately October 15, before the first frost on October 15.
Winter: Although outdoor gardening is limited, cold frames or greenhouses can be used to grow hardy greens like arugula and spinach during the winter months, ideally starting in mid-November for a continuous harvest.

In Lancaster (171 frost-free days, a moderate season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.

Month by month in Lancaster

Month	What to do
January	January is a time to plan your garden layout and order seeds. You can start planning for indoor seed starting for early spring crops, particularly cool-weather varieties.
February	Begin seed starting indoors this month, focusing on cool-season crops like broccoli and cabbage which can be transplanted outdoors after the last frost date approaches.
March	March signals the start of outdoor preparations as temperatures begin to warm. Begin planting cool-season crops like peas and spinach by the middle of the month, ensuring readiness for the last frost.
April	As we near the last frost date of April 27, continue planting cold-tolerant crops. Be watchful and prepared to protect tender seedlings from any late frosts.
May	With the last frost officially gone, May is prime time for planting warm-weather crops, including tomatoes and peppers. Transplant any seedlings you've nurtured indoors and continue sowing directly into the garden.
June	June offers ample warmth for growing a range of crops. Focus on maintaining watering schedules and start harvesting early summer varieties such as lettuce as they come to maturity.
July	July's high temperatures are perfect for maintaining garden health. Regularly check your plants for pests and diseases, and continue to water adequately to support crops through the heat.
August	As summer wanes in August, prepare for fall planting. Start harvesting mature crops like tomatoes and prepare the soil for your fall vegetables.
September	September marks the start of fall planting. Sow seeds for kale and other late-season crops early in the month, taking advantage of the warmer days before the first frost.
October	With the first frost date of October 15 approaching, it’s crucial to harvest remaining crops and protect any vulnerable plants. Consider harvesting late fall crops like pumpkins.
November	November signals the end of outdoor gardening for most. Prepare your garden for winter, cleaning up debris and planning your strategy for next year's planting.
December	In December, focus on indoor gardening or greenhouse plants if you have them. It's a good time to sort and organize seeds and gardening supplies for the upcoming season.

Frost dates for Lancaster ZIP codes

ZIP	Last spring frost (50%)	First fall frost (50%)	Zone
17603	April 27	October 15	7a
17601	April 27	October 15	7a
17602	April 18	October 21	7a

FAQ

When is the last frost in Lancaster?

The last frost in Lancaster typically occurs on April 27, allowing gardeners to plan their spring planting accordingly.

What vegetables grow best in Lancaster?

Vegetables like tomatoes, peppers, and cucumbers grow exceptionally well due to the heat during the summer months, thanks to Lancaster's humid temperate climate.

When should I plant tomatoes in Lancaster?

Tomatoes should be planted in Lancaster after the last frost date, around April 27, which allows them to benefit from the warm summer weather.

Can I garden year-round in Lancaster?

While outdoor gardening is restricted in winter, using cold frames or greenhouses can allow for year-round gardening of certain hardy crops.

How does Plan My Garden help Lancaster gardeners?

Plan My Garden provides tailored advice, frost dates, and planting calendars designed specifically for Lancaster, helping gardeners optimize their planting schedules and crop selection.