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

A way of getting a good idea when it's the best time to plant corn is to look at the USDA zone info for Coos Bay.

Planting Calendar for Corn

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

Since corn require warm weather you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant corn in Coos Bay 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. You can get started a few weeks earlier by starting your corn indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Coos Bay. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Coos Bay is not always accurate the actual date of last frost will vary from year to year. Half of the time in Coos Bay you get a frost after February 15 so make sure that you are prepared to cover your corn if you have a late frost.

USDA Zone Info for Coos Bay

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 Coos Bay

You may be interested in your other planting guides for Coos Bay.