Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Corpus Christi it's a good idea to figure out when to plant iceberg lettuce.

Planting Calendar for Iceberg lettuce

Frost tolerance for iceberg lettuce:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Iceberg lettuce do ok in moderate cold which means that you can plant them slightly earlier than plants that are more sensitive to the cold.

The earliest that you can plant iceberg lettuce in Corpus Christi is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant iceberg lettuce and expect a good harvest is probably September. You probably don't want to wait any later than that or else your iceberg lettuce may not have a chance to grow to maturity. Starting your iceberg lettuce indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Corpus Christi. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Corpus Christi is an average the actual date of last frost is different every year. Half of the time in Corpus Christi you get surprised by a frost after February 15 so always be ready to protect your iceberg lettuce if you have a late frost.

USDA Zone Info for Corpus Christi

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Corpus Christi

You may be interested in your other planting guides for Corpus Christi.