The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to determine when it's the best time to plant oregano by checking out the USDA zone info for Sheldon.

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 a little bit of cold which means that you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant oregano in Sheldon 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 grow to maturity. Starting your oregano indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Sheldon. In the coldest months of winter you can expect an average low temperature of -25°F.

Always keep in mind that USDA zone info for Sheldon is an average and the actual date of last frost changes from year to year. Half of the time in Sheldon there is a last frost after May 15 so be sure to be ready to cover your oregano in the event of a late frost.

USDA Zone Info for Sheldon

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

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

Plants to Grow in Sheldon

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