Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Harbor springs, MI, based on the USDA Hardiness Zone 5b.
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Harbor springs, MI Frost Dates & Growing Season
Last Spring Frost Date for Harbor springs, MI
The average last frost date in spring for Harbor springs is May 23rd. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until June 6th 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 Harbor springs, MI
The average first frost date in fall for Harbor springs 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 Harbor springs, MI
Based on historical frost data, the estimated growing season length in Harbor springs is approximately 145 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.
Harbor springs, MI Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Harbor springs, MI Monthly Planting Recommendations
March
In March, recommended activities include starting Ground Cherry seeds indoors (from March 28th to April 11th), starting Black Eyed Susan seeds indoors (from March 28th to April 11th), and starting Pepper seeds indoors (from March 28th to April 11th).
April
In April, recommended activities include direct sowing Alfalfa (from April 25th to May 9th), direct sowing Radish (from April 25th to May 9th), and direct sowing Mustard (from April 25th to May 9th).
May
In May, recommended activities include direct sowing Calendula (from May 9th to May 23rd), direct sowing Babys Breath (from May 23rd to June 6th), and direct sowing Lentil (from May 9th to May 23rd).
June
In June, recommended activities include direct sowing Melon (from June 6th to June 20th), direct sowing Lima Bean (from June 6th to June 20th), and direct sowing Black Bean (from June 6th to June 20th).