Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Alpha, MI, based on the USDA Hardiness Zone 4a.
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Alpha, MI Frost Dates & Growing Season
Last Spring Frost Date for Alpha, MI
The average last frost date in spring for Alpha is June 5th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until June 19th 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 Alpha, MI
The average first frost date in fall for Alpha is September 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 Alpha, MI
Based on historical frost data, the estimated growing season length in Alpha is approximately 112 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.
Alpha, MI Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Alpha, MI Monthly Planting Recommendations
March
In March, recommended activities include starting Geranium seeds indoors (from March 27th to April 10th), starting Pansy seeds indoors (from March 27th to April 10th), and starting Petunia seeds indoors (from March 27th to April 10th).
April
In April, recommended activities include starting Kale seeds indoors (from April 24th to May 8th), starting Tomato seeds indoors (from April 10th to April 24th), and starting Marigold seeds indoors (from April 24th to May 8th).
May
In May, recommended activities include direct sowing Sorrel (from May 8th to May 22nd), direct sowing Carrot (from May 15th to May 29th), and direct sowing Crimson Clover (from May 8th to May 22nd).
June
In June, recommended activities include direct sowing Moss Rose (from June 12th to June 26th), direct sowing Cucumber (from June 12th to June 26th), and direct sowing Zinnia (from June 12th to June 26th).