When to Plant Garlic in Arizona (2026 Guide)
Garlic is a must-have for any home gardener in Arizona, thriving in the unique climate. For those in places like Phoenix and Tucson, the optimal planting time is crucial, given the median last spring frost dates of February 8 in warmer zones and February 16 in slightly cooler areas. By understanding these dates, you can plan the perfect garlic planting schedule to ensure a bountiful harvest next summer.
In Arizona, garlic planting typically takes place in the fall, following the harvest of summer crops, which gives your garden beds a productive purpose during the cooler months. This strategic timing not only utilizes your gardening space effectively but also aligns perfectly with the growing conditions. With a frost-free season stretching about 300 days in warmer zones, gardeners can achieve remarkable yields from both softneck and hardneck garlic varieties.
As you prepare to plant garlic, remember that the variety you choose plays a significant role in its success. Softneck garlic, with its storability and milder flavor, suits Arizona's mild winters perfectly. Meanwhile, hardneck garlic, although demanding a colder climate for optimal growth, can also be successful if managed carefully. Making the correct choice will lead to larger bulbs and a more enjoyable harvest.
Planting Schedule by USDA Zone in Arizona
| Zone | Indoor start | Transplant out | Direct sow | Harvest |
|---|---|---|---|---|
| Zone 8b–9a | N/A | Plant cloves October 1 – November 15, ~2–4 weeks after the last frost of February 8. | N/A | Harvest June 15 – July 15, when 60–70% of lower leaves are yellow. |
| Zone 7b–8a | N/A | Plant cloves October 15 – November 30, ~2–4 weeks after the last frost of February 16. | N/A | Harvest June 25 – August 1, when 60–70% of lower leaves are yellow. |
| Zone 5b | N/A | Plant cloves September 15 – October 15, ~8–12 weeks before the last frost of May 4. | N/A | Harvest July 15 – August 15, when 60–70% of lower leaves are yellow. |
Garlic Planting Windows in Arizona
- Indoor start: N/A
- Transplant outdoors: Plant garlic outdoors between October 1 and November 30 depending on your growing zone.
- Harvest: Garlic is typically ready for harvest from June 15 to August 15 based on your local frost dates.
Common Mistakes Growing Garlic in Arizona
- Many Arizona gardeners neglect to choose the right planting time, leading to poor garlic yields. Understanding your local frost dates is essential for successful growth, as planting too early or late can result in subpar bulbs.
- Failure to properly cure garlic after harvest is a common issue. In Arizona, high temperatures can mislead gardeners into thinking their garlic is stored correctly when, in fact, uncured garlic will rot quickly if not handled properly.
- Using small or damaged cloves can diminish garlic sizes and yields. Arizona's unique growing conditions require the best starts, so always select the largest and healthiest cloves for planting.
- Ignoring local soil conditions is another common mistake. Many areas in Arizona have alkaline soil that can hinder garlic growth, so be sure to amend your soil as required for optimal results.
- Underestimating the importance of garlic scapes can lead to disappointed harvests. In Arizona's warmer climates, removing scapes not only improves bulb size but enhances overall crop production.
Frequently Asked Questions
What if I'm in a cold pocket of Arizona?
If you live in a colder area, ensure you're aware of your specific frost dates since they might differ from those in warmer zones. It may be necessary to start garlic indoors or select frost-hardy garlic varieties.
Can I still plant garlic in May?
Unfortunately, planting garlic in May is not advisable as it will likely not have enough time to mature before the frost returns. It's best to stick to the recommended October to November window for optimal results.
What's the best way to store harvested garlic?
To store garlic long-term, cure it in a shaded area with airflow for 3–6 weeks. Once fully cured, place it in a cool, dry spot at around 55–65°F for the best shelf life.
How do I know when to harvest my garlic?
Look for 60–70% of the lower leaves to turn yellow. This usually indicates that your garlic is ready for harvest, which generally occurs between June and August depending on your growing zone.
What should I do if my garlic plants are not growing well?
If your garlic is struggling, check your soil conditions for drainage and pH balance. Frequent watering and proper mulching can help maintain moisture and support healthy growth in Arizona's climate.
Keep Learning
City guides in Arizona
Other crops in Arizona
Typical fall sowing window for Garlic in Arizona: December 1 – December 22.