Warm-Season Vegetable

When to Plant Corn (Sweet) in New Mexico

Nothing says summer like fresh sweet corn. Plant in blocks (not rows) for proper pollination.

The Short Answer

In New Mexico, corn (sweet) planting dates vary by region. In Northern New Mexico, your average last frost is around May 5 - May 25, while Southern New Mexico sees its last frost around Mar 15 - Apr 5. Since corn (sweet) are frost-sensitive, direct sow 2 weeks after your last frost date. Alkaline desert soils. Low organic matter. Caliche layers common. Heavy amendment with compost essential.

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

Corn (Sweet) 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
2 wks after frost

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

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

Direct Sow
2 wks after frost

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

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

Direct Sow
2 wks after frost

Growing Corn (Sweet) in New Mexico

Corn (Sweet) in New Mexico's Climate

Corn follows the inverted calendar in subtropical zones. Plant from January (south Florida) through March. Harvest before summer heat causes poor kernel development during pollination. Fall armyworm is the most destructive corn pest in hot climates — Bt is essential.

Soil Considerations for New Mexico

Alkaline desert soils. Low organic matter. Caliche layers common. Heavy amendment with compost essential. Make sure soil has warmed to at least 60°F before planting corn (sweet) outside.

New Mexico Climate & Growing Season

High desert climate. Intense sun. Low humidity. Wide temperature swings day to night. Irrigation essential. Corn (Sweet) cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.

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 corn (sweet) — transplant timing shifts by several weeks across the state.

Growing Tips

Plant in blocks of at least 4x4 for wind pollination. Corn is a heavy feeder — amend soil with compost before planting.

Companion Planting

Plant corn (sweet) alongside these companions for better growth:

Beans Squash Melons

Keep corn (sweet) away from:

Tomatoes

The Bottom Line

Corn (Sweet) 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

Corn (Sweet) Growing Guide National planting guide with all states New Mexico Planting Calendar All plants for New Mexico Corn (Sweet) in Alabama Alabama planting dates Corn (Sweet) in Alaska Alaska planting dates Corn (Sweet) in Arizona Arizona planting dates Corn (Sweet) 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

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