One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when it's the best time to plant corn by reviewing the USDA zone info for Newberg.

Planting Calendar for Corn

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

Since corn do not do well in cold weather you need to wait until after the last frost before you can plant them.

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

The last month that you can plant corn and expect a good harvest is probably August. Any later than that and your corn may not have a chance to really do well. Starting your corn indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Newberg. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Newberg is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Newberg you get surprised by a frost after March 15 so make sure that you are prepared to cover your corn in the event of a late frost.

USDA Zone Info for Newberg

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Newberg

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