Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Plain, WI, based on the USDA Hardiness Zone 5a.
On this page:
Plain, WI Frost Dates & Growing Season
Last Spring Frost Date for Plain, WI
The average last frost date in spring for Plain is May 9th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 23rd 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 Plain, WI
The average first frost date in fall for Plain is October 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 Plain, WI
Based on historical frost data, the estimated growing season length in Plain is approximately 149 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.
Plain, WI Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Plain, WI Monthly Planting Recommendations
February
In February, recommended activities include starting Pansy seeds indoors (from February 28th to March 14th), starting Leek seeds indoors (from February 28th to March 14th), and starting Celery seeds indoors (from February 28th to March 14th).
March
In March, recommended activities include starting Stevia seeds indoors (from March 14th to March 28th), starting Moonflower seeds indoors (from March 28th to April 11th), and starting Ground Cherry seeds indoors (from March 14th to March 28th).
April
In April, recommended activities include starting Pumpkin seeds indoors (from April 18th to April 25th), direct sowing Kale (from April 11th to April 25th), and direct sowing Garden Cress (from April 11th to April 25th).
May
In May, recommended activities include direct sowing Morning Glory (from May 16th to May 30th), direct sowing Pumpkin (from May 16th to May 30th), and direct sowing Sesame (from May 23rd to June 6th).