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, MI, based on the USDA Hardiness Zone 6a.
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New haven, MI Frost Dates & Growing Season
Last Spring Frost Date for New haven, MI
The average last frost date in spring for New haven is May 7th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 21st 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, MI
The average first frost date in fall for New haven is October 25th. 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, MI
Based on historical frost data, the estimated growing season length in New haven is approximately 171 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, MI Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
New haven, MI Monthly Planting Recommendations
February
In February, recommended activities include starting Pansy seeds indoors (from February 26th to March 12th), starting Petunia seeds indoors (from February 26th to March 12th), and starting French Lavender seeds indoors (from February 26th to March 12th).
March
In March, recommended activities include starting Black Eyed Susan seeds indoors (from March 12th to March 26th), starting Moonflower seeds indoors (from March 26th to April 9th), and starting Tomatillo seeds indoors (from March 12th to March 26th).
April
In April, recommended activities include direct sowing Sweet Pea (from April 9th to April 23rd), direct sowing Alyssum (from April 23rd to May 7th), and direct sowing Hyssop (from April 23rd to May 7th).
May
In May, recommended activities include direct sowing Black Bean (from May 21st to June 4th), direct sowing Cosmos (from May 14th to May 21st), and direct sowing Butternut Squash (from May 14th to May 28th).