Garlic is a fantastic crop that presents home gardeners with the opportunity to maximize their garden space. With its low maintenance needs and remarkable storage capabilities, garlic can be a rewarding addition to any New Mexico garden. Knowing when to plant garlic is crucial, especially since it is typically planted in the fall. In New Mexico’s various climate zones, gardeners must consider frost dates to determine the optimal planting and harvesting windows.
In Zone 5b, for example, the last spring frost occurs around May 2, which provides a frost-free period of approximately 168 days. This means that garlic should be planted in the fall, ideally before the ground freezes, to give it the best chance of thriving over the winter. In contrast, Zone 6a, with a last frost around April 21 and a longer growing season of about 182 days, allows for slightly earlier planting that can support larger and healthier garlic bulbs.
Gardeners in areas such as Albuquerque and Las Cruces will significantly benefit from understanding their local frost dates and soil conditions. Each zone's characteristics have implications for the best garlic varieties to grow, how to care for them during the colder months, and when to expect a bountiful harvest in the following summer. This guide aims to equip you with all the necessary information to successfully cultivate garlic in New Mexico.
| Zone | Indoor start | Transplant out | Direct sow | Harvest |
|---|---|---|---|---|
| Zone 5b | Start February 15 – March 1, ~6–8 weeks before May 2 | Transplant outdoors from March 15 – April 20, after the danger of frost has passed | Direct sow not applicable for garlic | Harvest from July 15 – August 15, when 60–70% of lower leaves have yellowed |
| Zone 6a | Start February 1 – February 15, ~6–8 weeks before April 21 | Transplant outdoors from March 15 – April 10, to avoid frost | Direct sow not applicable for garlic | Harvest from July 5 – August 5, when 60–70% of lower leaves have yellowed |
| Zone 6b | Start January 15 – January 31, ~6–8 weeks before April 13 | Transplant outdoors from March 1 – March 31, before the first frost | Direct sow not applicable for garlic | Harvest from July 1 – August 1, when 60–70% of lower leaves have yellowed |
If you're in a colder area, consider starting your garlic indoors earlier and then transplanting it later to avoid frost damage. Choose hardneck varieties, as they tend to perform better in slightly harsher climates.
It is generally too late to plant garlic in May as it requires a cold period for proper bulb formation. If you missed the fall planting window, consider planting in the fall as soon as frost is no longer a threat.
The best time to harvest garlic is when 60–70% of the lower leaves have yellowed. This usually occurs from late June to mid-August depending on your zone, so monitor your garlic's leaf color closely.
For New Mexico, consider growing softneck garlic varieties for milder climates or hardneck types that can adapt to colder areas. Both types can perform well if planted at the right time and cared for properly.
Yes, garlic is quite easy to grow in New Mexico as long as you pay attention to local frost dates and soil quality. Once planted, garlic requires minimal maintenance, making it ideal for home gardeners.
Typical fall sowing window for Garlic in New Mexico: October 17 – November 7.