Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Round rock, AZ, based on the USDA Hardiness Zone 7a.
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Round rock, AZ Frost Dates & Growing Season
Last Spring Frost Date for Round rock, AZ
The average last frost date in spring for Round rock is May 18th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until June 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 Round rock, AZ
The average first frost date in fall for Round rock 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 Round rock, AZ
Based on historical frost data, the estimated growing season length in Round rock is approximately 150 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.
Round rock, AZ Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Round rock, AZ Monthly Planting Recommendations
March
In March, recommended activities include starting Broccoli seeds indoors (from March 23rd to April 6th), starting Thyme seeds indoors (from March 23rd to April 6th), and starting Statice seeds indoors (from March 23rd to April 6th).
April
In April, recommended activities include starting Basil seeds indoors (from April 6th to April 20th), direct sowing Poppy (from April 20th to May 4th), and starting Luffa seeds indoors (from April 6th to April 20th).
May
In May, recommended activities include direct sowing Cosmos (from May 25th to June 1st), direct sowing Babys Breath (from May 18th to June 1st), and direct sowing Butternut Squash (from May 25th to June 8th).
June
In June, recommended activities include direct sowing Mung Bean (from June 1st to June 15th), direct sowing Melon (from June 1st to June 15th), and direct sowing Okra (from June 1st to June 15th).