Best Herbs to Grow in Arizona

Zone 9 gardeners enjoy one of the longest herb-growing seasons in the continental US, with nearly 290 frost-free days stretching from mid-February through November. This extended season is both a blessing and a challenge – while you can harvest fresh herbs almost year-round, the intense summer heat and humidity can stress many varieties. The key is choosing heat-tolerant herbs and understanding which ones will bolt quickly in your climate versus those that thrive in the warmth.

When selecting herbs for Zone 9, prioritize varieties known for heat tolerance and slow bolting. Mediterranean herbs like Greek Oregano, Common Thyme, and English Lavender absolutely love your climate, often performing better here than in cooler zones. Basil varieties are particularly well-suited to Zone 9's warm temperatures – just be prepared to succession plant cool-season herbs like Cilantro and Dill every few weeks during spring and fall to ensure continuous harvests before they bolt in the heat.

The varieties we've selected specifically excel in Zone 9's unique conditions. Heat-loving herbs like French Tarragon and Garden Sage will establish strong root systems during your mild winters, while multiple basil varieties give you options from early spring through late fall. Smart variety selection and strategic planting times will keep your herb garden productive when other zones are dealing with winter dormancy.