Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Irmo, SC, based on the USDA Hardiness Zone 8b.
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Irmo, SC Frost Dates & Growing Season
Last Spring Frost Date for Irmo, SC
The average last frost date in spring for Irmo is April 1st. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until April 15th 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 Irmo, SC
The average first frost date in fall for Irmo is November 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 Irmo, SC
Based on historical frost data, the estimated growing season length in Irmo is approximately 218 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.
Irmo, SC Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Irmo, SC Monthly Planting Recommendations
January
In January, recommended activities include starting Geranium seeds indoors (from January 21st to February 4th), starting Pansy seeds indoors (from January 21st to February 4th), and starting Onion seeds indoors (from January 21st to February 4th).
February
In February, recommended activities include starting Pepper seeds indoors (from February 4th to February 18th), starting Coleus seeds indoors (from February 4th to February 18th), and starting Stevia seeds indoors (from February 4th to February 18th).
March
In March, recommended activities include direct sowing Chervil (from March 4th to March 18th), starting Cantaloupe seeds indoors (from March 4th to March 18th), and direct sowing Lentil (from March 18th to April 1st).
April
In April, recommended activities include direct sowing Fenugreek (from April 1st to April 15th), direct sowing Corn (from April 15th to April 22nd), and direct sowing Jute (from April 15th to April 29th).