One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Wahpeton can be reffered to in order to figure out when it's a good idea to plant oregano.

Planting Calendar for Oregano

Frost tolerance for oregano:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Oregano do well in moderate cold which tells us that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant oregano in Wahpeton 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 oregano and expect a good harvest is probably August. You probably don't want to wait any later than that or else your oregano may not have a chance to really do well. Starting your oregano indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Wahpeton. In the coldest months of winter you should expect an average low temperature of -30°F.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Wahpeton and it can change quite a bit from year to year. Half of the time in Wahpeton there is a last frost after May 15 so always be ready to cover your oregano if you have one of those late frosts.

USDA Zone Info for Wahpeton

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

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

Plants to Grow in Wahpeton

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