Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Poston, AZ, based on the USDA Hardiness Zone 9b.
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Poston, AZ Frost Dates & Growing Season
Last Spring Frost Date for Poston, AZ
The average last frost date in spring for Poston is January 25th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until February 8th 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 Poston, AZ
The average first frost date in fall for Poston 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 Poston, AZ
Based on historical frost data, the estimated growing season length in Poston is approximately 310 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.
Poston, AZ Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Poston, AZ Monthly Planting Recommendations
January
In January, recommended activities include direct sowing Dill (from January 11th to January 25th), direct sowing Fenugreek (from January 25th to February 8th), and direct sowing German Chamomile (from January 11th to January 25th).
February
In February, recommended activities include direct sowing Moss Rose (from February 1st to February 15th), direct sowing Melon (from February 8th to February 22nd), and direct sowing Jute (from February 8th to February 22nd).
November
In November, recommended activities include starting Pepper seeds indoors (from November 30th to December 14th), starting Artichoke seeds indoors (from November 16th to November 30th), and starting Black Eyed Susan seeds indoors (from November 30th to December 14th).
December
In December, recommended activities include starting Moonflower seeds indoors (from December 14th to December 28th), starting Luffa seeds indoors (from December 14th to December 28th), and starting Sage seeds indoors (from December 14th to December 28th).