Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Io, ID, based on the USDA Hardiness Zone 5b.
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Io, ID Frost Dates & Growing Season
Last Spring Frost Date for Io, ID
The average last frost date in spring for Io is May 24th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until June 7th 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 Io, ID
The average first frost date in fall for Io is September 20th. 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 Io, ID
Based on historical frost data, the estimated growing season length in Io is approximately 119 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.
Io, ID Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Io, ID Monthly Planting Recommendations
March
In March, recommended activities include starting Stevia seeds indoors (from March 29th to April 12th), starting Aubergine seeds indoors (from March 29th to April 12th), and starting Oregano seeds indoors (from March 29th to April 12th).
April
In April, recommended activities include direct sowing Chervil (from April 26th to May 10th), direct sowing Sweet Pea (from April 26th to May 10th), and starting Basil seeds indoors (from April 12th to April 26th).
May
In May, recommended activities include starting Pumpkin seeds indoors (from May 3rd to May 10th), direct sowing Pumpkin (from May 31st to June 14th), direct sowing Hyssop (from May 10th to May 24th), and direct sowing Moss Rose (from May 31st to June 14th).
June
In June, recommended activities include direct sowing Butterfly Pea (from June 7th to June 21st), direct sowing Black Bean (from June 7th to June 21st), and direct sowing Watermelon (from June 7th to June 21st).