Ulster, PA Planting Calendar (What to Plant by Month)

Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Ulster, PA, based on the USDA Hardiness Zone 6a.

Ulster, PA Frost Dates & Growing Season

Last Spring Frost Date for Ulster, PA

The average last frost date in spring for Ulster is May 15th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 29th before moving plants outdoors. Waiting these extra few weeks significantly reduces the risk of a late freeze damaging young transplants.

First Fall Frost Date for Ulster, PA

The average first frost date in fall for Ulster is October 15th. This date marks the approximate end of the growing season for tender plants. Gardeners should plan to harvest frost-sensitive vegetables or provide heavy protection (such as row covers) before this date to avoid crop loss.

Growing Season Length in Ulster, PA

Based on historical frost data, the estimated growing season length in Ulster is approximately 153 days. This duration determines which vegetable varieties have enough time to reach maturity before the winter cold sets in. Short-season varieties are recommended for crops that require a longer warm period.

Please note: These dates are climatological averages. Actual weather conditions vary by year. Always check the local 10-day forecast before planting.

Ulster, PA Planting Calendar

This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.

Legend: I = Start seed indoors S = Direct sow T = Transplant H = Harvest
Generating calendar...

Ulster, PA Monthly Planting Recommendations

March

In March, recommended activities include starting Impatiens seeds indoors (from March 6th to March 20th), starting Coneflower seeds indoors (from March 20th to April 3rd), and starting Black Eyed Susan seeds indoors (from March 20th to April 3rd).

April

In April, recommended activities include direct sowing Alfalfa (from April 17th to May 1st), starting Moonflower seeds indoors (from April 3rd to April 17th), and direct sowing Sweet Pea (from April 17th to May 1st).

May

In May, recommended activities include direct sowing Calendula (from May 1st to May 15th), direct sowing Lima Bean (from May 29th to June 12th), and direct sowing Babys Breath (from May 15th to May 29th).