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.

In Mercedes you can determine when you can plant oregano by checking out the USDA zone info.

Planting Calendar for Oregano

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

You can plant oregano just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant oregano in Mercedes is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant oregano and expect a good harvest is probably October. You probably don't want to wait any later than that or else your oregano may not have a chance to fully mature. You can get started a few weeks earlier by starting your oregano indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Mercedes. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Mercedes is just an average the actual date of last frost is different every year. Half of the time in Mercedes you get surprised by a frost after February 15 so always be ready to cover your oregano in the event of a late frost.

USDA Zone Info for Mercedes

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Mercedes

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