Texas, U.S. · outdoor planting

When to plant sweet corn in Texas

Plant sweet corn in Texas after frost danger has passed and the soil has warmed. Texas A&M’s crop guide gives a seed-zone temperature above 65°F. For a fall crop, use the published date for your Texas gardening region.

Choose your next step
Spring condition
Seed zone above 65°F
Texas A&M crop-guide condition for direct sowing.
Method
Direct seed
Texas A&M lists sweet corn as direct seeded.
Final spacing
1 foot
Thin after emergence.

Planting dates

For spring, wait until frost danger has passed and the soil has warmed. Texas A&M’s crop guide gives a seed-zone temperature above 65°F and says sweet corn does not germinate below 50°F. For fall, start with your region’s row in the table.

Texas A&M: Sweet Corn crop guide

Your region

Texas A&M gives average fall sweet-corn dates from July 1 in Region I to September 20 in Region V. Identify the gardening region before using a date. The table is an average, not a maturity guarantee for every variety or county.

Texas A&M: Fall Vegetable Gardening Guide

Texas Region I

Fall planting: July 1

Texas A&M: Fall Vegetable Gardening Guide

Texas Region II

Fall planting: August 10

Texas A&M: Fall Vegetable Gardening Guide

Texas Region III

Fall planting: August 20

Texas A&M: Fall Vegetable Gardening Guide

Texas Region IV

Fall planting: September 10

Texas A&M: Fall Vegetable Gardening Guide

Texas Region V

Fall planting: September 20

Texas A&M: Fall Vegetable Gardening Guide

How to plant

Direct-sow sweet corn about 1 inch deep and 3 to 4 inches apart, then thin plants to 1 foot apart. Texas A&M recommends rows 2½ to 3 feet apart. Make several short rows or a block instead of one long row to help pollination.

Texas A&M: Easy Gardening, Sweet Corn

A second planting

If you have space, Texas A&M says a second planting can go in when the first plants have three to five leaves, usually 2 to 3 weeks later. Use the same temperature and frost checks for the second planting.

Texas A&M: Easy Gardening, Sweet Corn

Choose your next step

The spring soil is below 65°F

Wait for the seed-zone condition before direct sowing.

You want a fall crop

Find your Texas gardening region and use its average date alongside the variety maturity information.

Your garden has room for only one narrow row

Rework the layout into several short rows or a block before sowing so pollination has a better chance.

Planting questions

Can I transplant sweet corn?

Texas A&M’s crop guide lists sweet corn as direct seeded.

Texas A&M: Sweet Corn crop guide

Why plant sweet corn in a block?

Texas A&M recommends several short rows because that makes cross-pollination between stalks easier.

Texas A&M: Easy Gardening, Sweet Corn

Does a fall regional date guarantee harvest before frost?

No. The guide labels the dates average. Check the maturity information for the specific variety and local conditions.

Texas A&M: Fall Vegetable Gardening Guide
Plan a Texas fall garden