Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in March arb, CA, based on the USDA Hardiness Zone 9b.
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March arb, CA Frost Dates & Growing Season
Last Spring Frost Date for March arb, CA
The average last frost date in spring for March arb is March 20th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until April 3rd 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 March arb, CA
The average first frost date in fall for March arb is November 25th. 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 March arb, CA
Based on historical frost data, the estimated growing season length in March arb is approximately 250 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.
March arb, CA Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
March arb, CA Monthly Planting Recommendations
January
In January, recommended activities include starting Aubergine seeds indoors (from January 23rd to February 6th), starting Pepper seeds indoors (from January 23rd to February 6th), and starting Coneflower seeds indoors (from January 23rd to February 6th).
February
In February, recommended activities include direct sowing Chervil (from February 20th to March 6th), starting Pumpkin seeds indoors (from February 27th to March 6th), and starting Sage seeds indoors (from February 6th to February 20th).
March
In March, recommended activities include direct sowing Calendula (from March 6th to March 20th), direct sowing Morning Glory (from March 27th to April 10th), and direct sowing Sunflower (from March 27th to April 10th).
April
In April, recommended activities include direct sowing Chia (from April 3rd to April 17th), direct sowing Watermelon (from April 3rd to April 17th), and direct sowing Sesame (from April 3rd to April 17th).