Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Bloomington, CA, based on the USDA Hardiness Zone 9b.
On this page:
Bloomington, CA Frost Dates & Growing Season
Last Spring Frost Date for Bloomington, CA
The average last frost date in spring for Bloomington is March 15th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until March 29th 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 Bloomington, CA
The average first frost date in fall for Bloomington is December 1st. 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 Bloomington, CA
Based on historical frost data, the estimated growing season length in Bloomington is approximately 261 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.
Bloomington, CA Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Bloomington, CA Monthly Planting Recommendations
January
In January, recommended activities include starting Broccoli seeds indoors (from January 18th to February 1st), starting Ground Cherry seeds indoors (from January 18th to February 1st), and starting Begonia seeds indoors (from January 4th to January 18th).
February
In February, recommended activities include direct sowing Garden Cress (from February 15th to March 1st), direct sowing Chervil (from February 15th to March 1st), and starting Brussel Sprout seeds indoors (from February 1st to February 15th).
March
In March, recommended activities include direct sowing Moss Rose (from March 22nd to April 5th), direct sowing Morning Glory (from March 22nd to April 5th), and direct sowing Fennel (from March 1st to March 15th).