Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in New haven, CT, based on the USDA Hardiness Zone 7a.
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New haven, CT Frost Dates & Growing Season
Last Spring Frost Date for New haven, CT
The average last frost date in spring for New haven 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 New haven, CT
The average first frost date in fall for New haven is November 1st. 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 New haven, CT
Based on historical frost data, the estimated growing season length in New haven is approximately 196 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.
New haven, CT Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
New haven, CT Monthly Planting Recommendations
February
In February, recommended activities include starting Cabbage seeds indoors (from February 22nd to March 8th), starting French Lavender seeds indoors (from February 8th to February 22nd), and starting Artichoke 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 Flax (from March 22nd to April 5th), and direct sowing Sorrel (from March 22nd to April 5th).
April
In April, recommended activities include direct sowing Lentil (from April 5th to April 19th), direct sowing Moss Rose (from April 26th to May 10th), and direct sowing Calendula (from April 5th to April 19th).
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 Chia (from May 3rd to May 17th).