Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in San diego, TX, based on the USDA Hardiness Zone 9b.
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San diego, TX Frost Dates & Growing Season
Last Spring Frost Date for San diego, TX
The average last frost date in spring for San diego is February 15th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until March 1st 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 San diego, TX
The average first frost date in fall for San diego is December 10th. 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 San diego, TX
Based on historical frost data, the estimated growing season length in San diego is approximately 298 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.
San diego, TX Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
San diego, TX Monthly Planting Recommendations
January
In January, recommended activities include direct sowing Crimson Clover (from January 18th to February 1st), direct sowing Alfalfa (from January 18th to February 1st), and direct sowing Parsley (from January 18th to February 1st).
February
In February, recommended activities include direct sowing Beet (from February 1st to February 15th), direct sowing Pumpkin (from February 22nd to March 8th), and direct sowing Fennel (from February 1st to February 15th).
March
In March, recommended activities include direct sowing Corn (from March 1st to March 8th), direct sowing Sesame (from March 1st to March 15th), and direct sowing Jute (from March 1st to March 15th).
December
In December, recommended activities include starting Cauliflower seeds indoors (from December 21st to January 4th), starting French Lavender seeds indoors (from December 7th to December 21st), and starting Cabbage seeds indoors (from December 21st to January 4th).