Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Somerville, MA, based on the USDA Hardiness Zone 7a.
On this page:
Somerville, MA Frost Dates & Growing Season
Last Spring Frost Date for Somerville, MA
The average last frost date in spring for Somerville is April 11th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until April 25th 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 Somerville, MA
The average first frost date in fall for Somerville is November 5th. 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 Somerville, MA
Based on historical frost data, the estimated growing season length in Somerville is approximately 208 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.
Somerville, MA Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Somerville, MA Monthly Planting Recommendations
January
In January, recommended activities include starting French Lavender seeds indoors (from January 31st to February 14th), starting Artichoke seeds indoors (from January 31st to February 14th), and starting Celery seeds indoors (from January 31st to February 14th).
February
In February, recommended activities include starting Broccoli seeds indoors (from February 14th to February 28th), starting Moonflower seeds indoors (from February 28th to March 14th), and starting Luffa seeds indoors (from February 28th to March 14th).
March
In March, recommended activities include direct sowing Parsley (from March 14th to March 28th), direct sowing Mustard (from March 14th to March 28th), and direct sowing Poppy (from March 14th to March 28th).
April
In April, recommended activities include direct sowing Mung Bean (from April 25th to May 9th), direct sowing Pumpkin (from April 18th to May 2nd), and direct sowing Corn (from April 25th to May 2nd).