Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Spencerville, OH, based on the USDA Hardiness Zone 6a.
On this page:
Spencerville, OH Frost Dates & Growing Season
Last Spring Frost Date for Spencerville, OH
The average last frost date in spring for Spencerville is January 5th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until January 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 Spencerville, OH
The average first frost date in fall for Spencerville 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 Spencerville, OH
Based on historical frost data, the estimated growing season length in Spencerville is approximately 283 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.
Spencerville, OH Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Spencerville, OH Monthly Planting Recommendations
January
In January, recommended activities include direct sowing Lima Bean (from January 19th to February 2nd), direct sowing Zinnia (from January 12th to January 26th), and direct sowing Cosmos (from January 12th to January 19th).
October
In October, recommended activities include starting French Lavender seeds indoors (from October 27th to November 10th), starting Rosemary seeds indoors (from October 27th to November 10th), and starting Geranium seeds indoors (from October 27th to November 10th).
November
In November, recommended activities include starting Basil seeds indoors (from November 24th to December 8th), starting Tomatillo seeds indoors (from November 10th to November 24th), and starting Broccoli seeds indoors (from November 10th to November 24th).
December
In December, recommended activities include direct sowing Sweet Pea (from December 8th to December 22nd), direct sowing Dill (from December 22nd to January 5th), and direct sowing Lentil (from December 22nd to January 5th).