Planting calendar

Corn Planting Calendar for Arizona

Estimate spring and fall corn planting windows for Arizona, including seed starting, transplanting, outdoor sowing, harvest timing, and risk notes.

Sweet corn stalks with ears forming in a sunny garden

Quick planting window

Start indoorsNot recommended; sow seeds directly instead
TransplantNot recommended; sow seeds directly to avoid root disturbance
Sow seedsMarch to April
Estimated harvestJune to July
RiskMedium risk

Month calendar

Scan the year by month to see seed starting, sowing, transplanting, and harvest timing.

Jan
Watch
Feb
Watch
Mar
Sow seeds
Apr
Sow seeds
May
Watch
Jun
Harvest
Jul
Harvest
Aug
Watch
Sep
Watch
Oct
Watch
Nov
Watch
Dec
Watch

Corn is frost sensitive. Wait until the conservative transplant or sowing window for Arizona.

Next: ZIP code personalization

This is a state-level planning window based on typical frost timing and crop rules. Use local Extension guidance or a ZIP code frost-date tool before planting.

Planning notes

Days to maturity

80

Covered states

Arizona

Frost window

February to April / October to December

Low desert gardens often plant cool-season crops in fall and winter; high elevation gardens are much shorter season.

Corn growing notes

The calendar window is only the first step. These growing details affect survival, plant vigor, and harvest quality.

Sun

Full sun.

Soil

Fertile soil with steady nitrogen and moisture.

Spacing

8-12 inches in short blocks, not one long row.

Container

Not ideal for small containers.

Watering

Needs consistent water during tasseling and ear fill.

Common mistake

Planting too few plants for good pollination.

Beginner tip

Plant in blocks of several short rows.

Month window table

CropSpring transplant / sowSpring harvestFall transplant / sowFall harvest
CornMarch to AprilJune to JulyAugust to SeptemberNovember to December

Sources and limits

This page uses Arizona state-level frost windows, USDA zone ranges, and crop rules for planning. It does not replace local Extension or county-level guidance.

FAQ

When should I start corn seeds indoors in Arizona?

Corn is usually not started indoors. Sow outdoors in the recommended window instead.

When should I transplant corn in Arizona?

Corn is usually better sown outdoors because transplanting can disturb the roots.

Can I sow corn outdoors in Arizona?

Yes. The spring outdoor sowing window is about March to April, assuming soil and night temperatures are suitable.

When can I harvest corn in Arizona?

Spring planting estimates a harvest around June to July; fall planting estimates about November to December. Variety and weather can shift this by several weeks.

Is corn risky in Arizona?

Corn is frost sensitive. Wait until the conservative transplant or sowing window for Arizona. For fall: Corn is frost sensitive. Fall planting in Arizona needs enough warm days before first frost.

Do local differences inside Arizona matter?

Low desert gardens often plant cool-season crops in fall and winter; high elevation gardens are much shorter season. Treat this as a state-level starter window and confirm with a local Extension or frost-date tool before planting.

What growing details matter most for corn?

Full sun. Fertile soil with steady nitrogen and moisture. Common mistake: Planting too few plants for good pollination.

Is this ZIP-code accurate?

No. This page uses state-level windows; ZIP-code frost dates, USDA zone matching, and reminder calendars are planned for the next phase.