When to Plant in Tempe, AZ

In Tempe, Arizona, the garden calendar is defined by a median last spring frost date of February 8 and a median first fall frost on December 5, allowing for an impressive 300 frost-free days. This extended growing season provides local gardeners with abundant opportunities to cultivate a wide range of plants, from vegetables to flowering ornamentals, ensuring that you can enjoy a diverse garden year-round. When planning your planting schedule, understanding these critical frost dates is essential for maximizing your gardening success.

Tempe is characterized by a hot desert (Sonoran) microclimate, which significantly influences what can be successfully grown. Crops like tomatoes, peppers, and various melons thrive in the high temperatures and abundant sunlight. In contrast, crops that require cooler conditions, such as lettuce and spinach, often struggle in the intense heat and limited moisture. These factors highlight the importance of selecting the right plants that can withstand the local climate and flourish throughout the growing season.

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