Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for Mission Viejo you should be able to estimate when it's possible to plant corn.

Planting Calendar for Corn

Frost tolerance for corn:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

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 Mission Viejo 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 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 really do well. You can get started a few weeks earlier by starting your corn indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Mission Viejo. You can expect an average low temperature of 35°F in the coldest months of winter.

Since the USDA zone info for Mission Viejo is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Mission Viejo last frost occurs after January 31 be ready to protect your corn if you have a surprise late frost.

USDA Zone Info for Mission Viejo

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Mission Viejo

You may be interested in your other planting guides for Mission Viejo.