Cool-Season Vegetable

When to Plant Spinach in New Mexico

Fast from seed to salad. Spinach bolts in heat, so plant early in spring and again in fall.

The Short Answer

Spinach are cold-tolerant and do well in New Mexico's humid climate. You can direct sow 6 weeks before your last frost — that's as early as May 5 - May 25 in Northern New Mexico. New Mexico gardeners can also plant a fall crop. Alkaline desert soils. Low organic matter. Caliche layers common. Heavy amendment with compost...

New Mexico Frost Dates

Your planting dates depend on which part of New Mexico you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Northern New Mexico 4a, 4b, 5a, 5b May 5 - May 25 Sep 15 - Oct 5
Central New Mexico (Albuquerque) 7a, 7b Apr 1 - Apr 20 Oct 15 - Nov 5
Southern New Mexico 7b, 8a, 8b Mar 15 - Apr 5 Oct 25 - Nov 15

Spinach Planting Schedule for New Mexico

Northern New Mexico (Zones 4a, 4b, 5a, 5b)

Average last frost: May 5 - May 25 · Average first frost: Sep 15 - Oct 5

Direct Sow
6 wks before frost
Fall Planting
6 wks before first frost

Central New Mexico (Albuquerque) (Zones 7a, 7b)

Average last frost: Apr 1 - Apr 20 · Average first frost: Oct 15 - Nov 5

Direct Sow
6 wks before frost
Fall Planting
6 wks before first frost

Southern New Mexico (Zones 7b, 8a, 8b)

Average last frost: Mar 15 - Apr 5 · Average first frost: Oct 25 - Nov 15

Direct Sow
6 wks before frost
Fall Planting
6 wks before first frost

Growing Spinach in New Mexico

Spinach in New Mexico's Climate

Spinach requires the narrowest window of any green in subtropical zones. Sow from November through January only. Once temperatures exceed 70°F consistently, spinach bolts within days. Vietnamese cilantro and Malabar spinach are warm-weather alternatives that fill the same role in the kitchen.

Soil Considerations for New Mexico

Alkaline desert soils. Low organic matter. Caliche layers common. Heavy amendment with compost essential.

New Mexico Climate & Growing Season

High desert climate. Intense sun. Low humidity. Wide temperature swings day to night. Irrigation essential. Spinach can handle frost well, which is an advantage in New Mexico's climate. You can push planting dates earlier in spring and extend into fall.

Growing season length varies across New Mexico: Northern New Mexico (4a, 4b, 5a, 5b) has a last frost around May 5 - May 25, while Southern New Mexico (7b, 8a, 8b) sees frost end around Mar 15 - Apr 5. This difference matters for spinach — adjust your planting dates to match your specific region.

Growing Tips

Direct sow as soon as soil can be worked in spring. For fall, plant 6-8 weeks before first frost.

Companion Planting

Plant spinach alongside these companions for better growth:

Strawberries Peas Radishes

The Bottom Line

Spinach can be grown successfully across New Mexico, but your exact planting dates depend on which region you're in. Northern New Mexico gardeners should plan around a May 5 - May 25 last frost, while those in Southern New Mexico can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Spinach Growing Guide National planting guide with all states New Mexico Planting Calendar All plants for New Mexico Spinach in Alabama Alabama planting dates Spinach in Alaska Alaska planting dates Spinach in Arizona Arizona planting dates Spinach in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

Ready to Start Planting?

Enter your zip code and pick your plant. We'll tell you exactly when to plant, start seeds, and harvest — based on where you live.

Find Your Planting Dates