Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Union, NJ, based on the USDA Hardiness Zone 7a.
On this page:
Union, NJ Frost Dates & Growing Season
Last Spring Frost Date for Union, NJ
The average last frost date in spring for Union is April 19th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 3rd 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 Union, NJ
The average first frost date in fall for Union is November 10th. 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 Union, NJ
Based on historical frost data, the estimated growing season length in Union is approximately 205 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.
Union, NJ Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Union, NJ Monthly Planting Recommendations
February
In February, recommended activities include starting Artichoke seeds indoors (from February 8th to February 22nd), starting Thyme seeds indoors (from February 22nd to March 8th), and starting Geranium seeds indoors (from February 8th to February 22nd).
March
In March, recommended activities include direct sowing Lettuce (from March 22nd to April 5th), direct sowing Potato (from March 22nd to April 5th), and direct sowing Crimson Clover (from March 22nd to April 5th).
April
In April, recommended activities include direct sowing Lemon Balm (from April 19th to May 3rd), direct sowing Gladiolus (from April 19th to May 3rd), and direct sowing Moss Rose (from April 26th to May 10th).
May
In May, recommended activities include direct sowing Black Bean (from May 3rd to May 17th), direct sowing Corn (from May 3rd to May 10th), and direct sowing Sesame (from May 3rd to May 17th).