What Can Grow in Mesa, AZ

Mesa shares Phoenix's climate with two productive growing seasons and year-round warmth.

Mesa, AZ is in USDA Hardiness Zone 9b. The growing season lasts about 300 days, with last frost around January 15 and first fall frost around December 1. Top crops include tomatoes, peppers, lettuce.

9bUSDA Zone
300 daysFrost-Free
January 15Last Frost
December 1First Frost
🌱 What Grows in Mesa
tomatoespepperslettucecitrusmelonsherbs
💡 Planting Tips

Grow citrus year-round. Plant vegetables in two windows — cool and warm seasons.

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Shop seeds matched to your zone Burpee, Park Seed, and more — curated for your growing conditions.
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📍 Full Zone 9b Guide 🌎 Arizona Planting Guide

Frequently Asked Questions

Mesa, AZ is in USDA Plant Hardiness Zone 9b. Mesa shares Phoenix's climate with two productive growing seasons and year-round warmth.

The average last spring frost in Mesa is around January 15. The first fall frost typically arrives around December 1, giving a frost-free growing season of approximately 300 days.

Mesa's Zone 9b climate supports growing tomatoes, peppers, lettuce, citrus, melons, herbs. Grow citrus year-round. Plant vegetables in two windows — cool and warm seasons.

In Mesa, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of January 15. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.