When to Plant in Reading, PA

Reading, Pennsylvania, enjoys a growing season that stretches across 181 frost-free days, with a median last spring frost occurring on April 20 and the first fall frost typically arriving by October 18. This generous time frame provides ample opportunity for diverse horticultural pursuits ranging from vegetables to ornamental plants. Gardeners should effectively manage their planting schedules around these crucial frost dates to maximize yield and plant health.

The humid temperate climate of Reading, characterized by four distinct seasons, allows for the thriving of a wide variety of plants. Crops such as tomatoes, peppers, and zucchini prosper here, benefiting from the warm summers and adequate rainfall typical of this microclimate. However, crops like melons and sweet potatoes may struggle as they require longer warm periods without frost and sometimes face challenges in cooler early spring nights.

What to plant now in Reading

In early spring (mid-March to late April), consider starting crops like peas, lettuce, and spinach, which can tolerate cooler temperatures and should be sown a few weeks before the last frost on April 20.
As spring transitions into early summer (late April to June), it's optimal to plant warmer weather crops such as tomatoes, peppers, and corn. After April 20, these plants can thrive as temperatures rise.
During late summer through early fall (August to September), sow fall crops like broccoli, kale, and radishes. Aim to have these in the ground before the first fall frost on October 18 for optimal growth.
As winter approaches (October to December), focus on maintaining your garden. Mulching existing plants can help protect them from the frost, while planning for spring crops is ideal to prepare for the new growing season.

In Reading (181 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.

Month by month in Reading

Month	What to do
January	In January, gardeners in Reading can prepare for the upcoming growing season by planning their garden layout. It’s a great time to research potential plant varieties that thrive in a humid temperate climate.
February	As February arrives, begin starting seeds indoors for cool-weather crops that can go outside after the last frost. Focus on varieties like cabbage and onions to set the stage for spring gardening.
March	March marks the beginning of spring, where soil can be prepared for planting. Gardeners can start sowing seeds of hardy vegetables outdoors, like peas and spinach, before the last frost on April 20.
April	April is a crucial month as it leads up to the last frost date on April 20. Finish planting early crops and start transitioning to warmer-weather plants like tomatoes and peppers once the risk of frost passes.
May	In May, the garden becomes vibrant and full of life. By now, gardeners can safely plant tender crops without the worry of frost, such as squash and basil. Regular watering is essential as temperatures begin to rise.
June	June is ideal for maintaining established plants as they mature. Gardeners should focus on pest control and ensuring adequate moisture levels. Consider mulching to retain soil humidity during hot spells.
July	With the heat of July, monitoring the garden’s water needs becomes crucial. Keep an eye on summer crops like corn and tomatoes, ensuring they receive sufficient nutrients and care to maximize their harvest.
August	August is the time to start planning for fall crops. Begin sowing fast-growing varieties like radishes and turnips that can be harvested before the first frost, which occurs on October 18.
September	As September rolls in, continue to harvest summer crops while patching in fall vegetables. Ensure cool-weather crops are established before the onset of fall temperatures and frost.
October	October is a transitional month, leading up to the first frost on October 18. Complete harvesting of summer crops and prepare for winter, including mulching to protect perennials and planning for next season.
November	In November, the gardening season begins to wind down. This is a good time for clean-up tasks, such as removing dead plants and debris while planning winter care or spring prep.
December	December is a quiet month in the garden, perfect for reflection and planning for next year. Consider how to improve your garden layout and choose varieties that work well in the humid temperate climate.

Frost dates for Reading ZIP codes

ZIP	Last spring frost (50%)	First fall frost (50%)	Zone
19601	April 20	October 18	7a
19606	April 23	October 15	7a
19610	April 27	October 15	7a

FAQ

When is the last frost in Reading?

The last frost in Reading typically occurs on April 20, marking a significant date for gardeners to begin planting their spring crops.

What vegetables grow best in Reading?

Tomatoes, peppers, and zucchini thrive in Reading's humid temperate climate, which provides the warmth and moisture they require for optimal growth.

When should I plant tomatoes in Reading?

Tomatoes should be planted outside after the last frost date on April 20. Starting seedlings indoors in March can help get a jump on the growing season.

Can I garden year-round in Reading?

While there is a growing season from late April to mid-October, winter gardening is limited. However, some cold-tolerant crops and preparations can keep gardeners engaged year-round.

How does Plan My Garden help Reading gardeners?

Plan My Garden provides tailored guidance specific to Reading, helping gardeners make informed decisions based on local frost dates, seasonal patterns, and plant compatibility.