The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of making a decision about when to plant corn is to look at the USDA zone info for Pasadena.

Planting Calendar for Corn

Frost tolerance for corn:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You really shouldn't plant corn until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant corn in Pasadena is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant corn and expect a good harvest is probably September. You probably don't want to wait any later than that or else your corn may not have a chance to fully mature. If you are starting your corn indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Pasadena. You can expect an average low temperature of 20°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Pasadena is just an average and the actual date of last frost is different every year. Half of the time in Pasadena you get a frost after February 15 so just be sure to be ready to protect your corn if you have a surprise late frost.

USDA Zone Info for Pasadena

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Pasadena

You may be interested in your other planting guides for Pasadena.